Lead Opinion
Opinion for the court filed by Circuit Judge RADER, dissenting-in-part and concurring-in-part opinion filed by Circuit Judge SCHALL.
In the United States District Court for the District of Colorado, a jury found that Laboratory Corporation (LabCorp) indirectly infringed Metabolite Laboratories, Inc.’s (Metabolite’s) U.S. Patent No. 4,940,658 (the '658 patent). The jury also found that LabCorp partially breached its contract with Metabolite. Based on this verdict, the district court assessed damages of $3,652,724.61 for breach of contract and $1,019,365.01 for indirect infringement. Metabolite Labs., Inc. v. Lab. Corp., No. 99-Z-870 (D.Colo. Dec. 3, 2001). After denying LabCorp’s motion for judgment as a matter of law (JMOL), the district court doubled the infringement award for willful infringement and issued a permanent injunction. Metabolite Labs., Inc. v. Lab. Corp., No. 99-Z-870 (D.Colo. Nov. 19, 2001). Because the record supports the jury’s verdicts and the trial court’s decisions, this court affirms.
I.
The '658 patent claims methods for detecting cobalamin or folate deficiency. Co-balamin and folate are both B vitamins, commonly known as B12 and folic acid, respectively. A deficiency in these vitamins can cause serious illnesses in humans, including vascular disease, cognitive dysfunction, birth defects and cancer. If detected early enough, however, vitamin supplements readily treat the deficiency.
Because these B vitamins assist in metabolizing the amino acid homocysteine, scientists directly assayed homocysteine to screen for cobalamin and folate deficiency. These direct homocysteine assays were unreliable. Then researchers at University Patents Inc. (UPI) discovered a relationship between elevated levels of total homo-cysteine and a deficiency in either cobala-min or folate. The total homocysteine test, however, could not alone identify which vitamin was deficient. Total homo-cysteine includes free and protein-com-plexed homocysteine and also includes ho-mocysteine derivatives homocystine and homocysteine-cysteine.
Originally, doctors could not conveniently treat both deficiencies because while folate was available in tablet form, cobala-min could only be administered by injection. After cobalamin became available in tablet form, however, doctors could simply order a total homocysteine test and, without identifying the deficient vitamin, treat elevated levels of total homocysteine with a tablet containing both cobalamin and fo-late. The UPI inventors also developed a test to identify the deficient vitamin using methylmalonic acid (the panel test method). The '658 patent claims both the total homocysteine test and the total homocy-steine-methylmalonic acid test.
Claim 13 claims the total homocysteine test:
13. A method for detecting a deficiency of cobalamin or folate in warm-blooded animals comprising the steps of:
assaying a body fluid for an elevated level of total homocysteine; andcorrelating an elevated level of total homocysteine in said body fluid with a deficiency of cobalamin or folate.
'658 patent, col. 11, ll. 58-65.
UPI’s successor, Competitive Technologies Inc., licensed the patent to Metabolite, which in turn sublicensed the patent to Roche Biomedical Laboratories (now Lab-Corp). LabCorp, a laboratory testing company, originally performed total homo-cysteine assays under the sublicense. But in 1998, LabCorp switched to a total homo-cysteine assay developed by Abbott Laboratories (Abbott test) and discontinued royalty payments to Metabolite for total homocysteine assays.
In response, Metabolite sued LabCorp for infringement. The district court construed the disputed claim terms, and the case proceeded to a jury. The jury found that LabCorp breached its license agreement with Metabolite, that LabCorp willfully infringed the '658 patent, and that the claims at issue are not invalid. The jury assessed damages against LabCorp of $3,652,724.61 for breach of contract and $1,019,365.01 for infringement. The district court entered judgment against Lab-Corp and awarded damages as assessed by the jury.
After the trial, the district court denied LabCorp’s motion for JMOL on infringement, breach of contract, invalidity, and willful infringement. In light of the finding of willfulness, the district court doubled the jury’s infringement award to $2,038,730.02. The district court also permanently enjoined LabCorp from using the homocysteine-only test. LabCorp appeals the district court’s claim construction as well as the denial of JMOL.
II.
Claim construction is a matter of law that this court reviews without deference. Cybor Corp. v. FAS Techs., Inc.,
This court reviews a denial of JMOL without deference by reapplying the JMOL standard. Thus, this court will affirm a denial of JMOL unless substantial evidence does not support the jury’s factual findings or the verdict rests on legal errors. Waner v. Ford Motor Co.,
Whether a specification complies with the written description requirement of 35 U.S.C. § 112, paragraph 1, is a question of fact that this court reviews for substantial evidence. Union Oil v. Atl. Richfield Co.,
Whether infringement was willful is a question of fact that this court reviews for substantial evidence. Crystal Semiconductor Corp. v. TriTech Microelecs. Int’l, Inc.,
III.
Infringement
The primary challenge to the jury’s indirect infringement verdict requires this court to review the district court’s construction of the claim term “correlating.” The infringement inquiry is a two-step process. This court construes the disputed claim terms and then compares the properly construed claims to the accused device. Cybor Corp.,
As always, the claim language itself governs its meaning. Vitronics Corp. v. Conceptronic, Inc.,
In most cases, the best source for discerning the proper context of claim terms is the patent specification wherein the patent applicant describes the invention. In addition to providing contemporaneous technological context for defining claim terms, the patent applicant may also define a claim term in the specification “in a manner inconsistent with its ordinary meaning.” Boehringer Ingelheim Vetmedica, Inc. v. Schering-Plough Corp.,
Another tool to supply proper context for claim construction is the prosecution history. As in the case of the specification, the patent applicant’s consistent usage of a term in prosecuting the patent may enlighten the meaning of that term. Middleton, Inc. v. Minn. Mining & Mfg. Co.,
This court also acknowledges the relevance of extrinsic evidence, often presented in the form of expert testimony. Pitney Bowes, Inc. v. Hewlett-Packard Co.,
As noted before, these claim construction aids inform the court’s task of ascertaining the meaning of the claim terms to one of ordinary skill in the art at the time of invention. Moba v. Diamond Automation, Inc.,
The disputed term “correlating” appears in the second step of claim 13, which states: “[C]orrelating an elevated level of total homocysteine in said body fluid with a deficiency of cobalamin or folate.” In its Markman brief below, LabCorp urged the district court to construe “correlate” according to its dictionary definition as a verb meaning “to establish a mutual or reciprocal relation of’ an elevated level of homocysteine. Lab-Corp further argued that the district court should construe the “correlating” step as establishing that an elevated level of ho-mocysteine is caused by a “shortage of co-balamin which causes a hematologic or neuropsychiatric abnormality,” or “[a] deficiency of folate which causes a hematologic abnormality.” The district court adopted LabCorp’s dictionary definition by construing “correlating” to mean “to establish a mutual or reciprocal relationship between,” but declined to “include a reference to hematologic or neuropsychiatric abnormality” in order to avoid impermissi-bly importing a limitation from the specification.
On appeal, LabCorp argues that claim 13’s correlating step should be construed as establishing that an elevated level of homocysteine is caused by a “shortage of cobalamin which causes a hematologic or neuropsychiatric abnormality,” or a “deficiency of folate which causes a hematologic abnormality.” LabCorp interprets the specification to clearly define a “deficiency of cobalamin” as the presence of a clinical or hematologic syndrome or both that responds to cyano-cobalamin treatment, and to acknowledge that some clinical or hematologic syndrome or neuropsychiatric abnormality must be present. Thus, Lab-Corp contends that the correlation step of claim 13 should be construed to require a showing of a separate hematologic or neu-ropsychiatric symptom to confirm the “correlation.”
The claim states that the method must correlate “an elevated level of total homo-cysteine ... with a deficiency of cobalamin or folate.” This language does not require a further association between the level of
The preamble further supports the district court’s reading of the claim: “A method for detecting a deficiency of cobalamin or folate in warm-blooded animals.” This language restates that the invention detects vitamin deficiency. This introductory language does not relate those deficiencies to any particular abnormality. A preamble may provide context for claim construction, particularly, where as here, that preamble’s statement of intended use forms the basis for distinguishing the prior art in the patent’s prosecution history. Catalina Mktg. Int’l, Inc. v. Coolsavings.com, Inc.,
An examination of the prosecution history of this patent brings the meaning of the preamble into focus. As originally filed, claim 13 did not contain the “correlating” step. The examiner rejected claim 13 under 35 U.S.C. § 112 because it did not “recite discrete, sequential process steps, for example, obtaining a sample, contacting the sample with, etc. The final step should be clearly related to the preamble of the claim.” Rather than add a second step as the examiner suggested, however, the applicant responded: “[A]s applicants are the first to detect cobalamin or folate deficiency by assaying body fluids for total homocysteine, it is believed that they are entitled to a claim of equivalent scope, not limited to any particular steps or methods.” After this response, the examiner dropped the § 112 objection, but rejected claim 13 under § 102: “In the absence of a correlation step, the preamble of claim 13 merely recites an intended use of the invention. The claim lacks a positive limitation for correlating to a particular condition and has only one method step recited.” At that point, the applicant added the recommended “correlating” step. The examiner then allowed claim 13.
This prosecution history ties the preamble directly to the “correlating” step. Specifically, the recitation of the intended use in the preamble makes this invention a method for detecting a vitamin deficiency. “Detecting” in the medical context requires evaluation of all test results, both positive and negative, to evaluate a patient’s condition. For example, the results of a pregnancy test can either be positive or negative. Either result is informative to the patient. Similarly, in this case, the assaying step can identify an elevated or an unelevated level of total homocysteine. Then the “correlating” step can identify, in cases of elevated levels, a relationship or not to vitamin deficiency. The results in either the assaying or correlating steps are informative. Thus, the preamble supports the district court’s construction that “correlating” includes ascertaining either a mutual or reciprocal relationship between total homocysteine and a vitamin deficiency. The preamble does not require this invention to show a further association with an abnormality.
The specification confirms that the claim language does not require as part of the method a confirmation that the elevated level causes some deleterious symptoms or abnormalities. LabCorp points to portions of the specification that discuss the relationship between the elevated levels and either clinical or hematologic symptoms. See, e.g., '658 patent, col. 10, ll. 56-61; col. 12, ll. 8-15. LabCorp would expand those
As noted earlier, the district court construed “correlating” to mean a “mutual or reciprocal relationship between” the elevated levels and the vitamin deficiencies. The inventors discovered that assaying total homocysteine correlated with (or predicted relatively accurately) whether a patient had a deficiency of cobalamin or folate. Id. at col. 4. ll. 17-23; col. 10, ll. 35-42. The specification explains that an elevated level of total homocysteine often indicates a deficiency, while a non-elevated level indicates no deficiency. For example, the overview of the invention notes: “This invention pertains to ... methods for determining whether said warm-blooded animal has a cobalamin deficiency, a folic acid deficiency, neither, or both.” Id. at col. 1, ll. 13-15 (emphasis added). Next, in the summary of the invention, the patentee stated: “Accordingly, assays for homocysteine can be used to determine the presence or absence of cobalamin and/or folic acid deficiency in warm-blooded animals.” Id. at col. 5, 1. 66-col. 6, l. 1 (emphasis added). This court observes that the perfect symmetry between “mutual or reciprocal” and “presence or absence” shows that the district court correctly placed the term “correlating” in its proper context with its proper meaning.
Finally, the patentee explained:
Once folate and/or cobalamin deficiency has been determined, the progress of treatment can be monitored by repeating the assays periodically during and after treatment. A drop in the level of homocysteine in the serum and/or urine after oral or parenteral administration of cobalamin and/or folate as the case may be confirms the diagnosis.
Id. at col. 10, ll. 18-24. This recitation confirms that the patentee anticipated assays without an elevated level of total ho-mocysteine, i.e., the reciprocal relationship, would further confirm the diagnosis by showing an improvement trend after a physician prescribed treatment.
Taken in the context of the entire specification, “correlating” means relating total homocysteine levels to cobalamin or folate deficiency, a deficiency in both, or a deficiency in neither. In essence, “correlating” means to relate the presence of an elevated total homocysteine level to either a cobalamin or folate deficiency, or both (i.e., a mutual relationship), and also to relate the absence of an elevated total homocysteine level to a deficiency in neither (i.e., a reciprocal relationship). The claim, in other words, provides that if the assay discloses “an elevated level of total homocysteine,” the physician determines whether there is a cobalamin or folate, deficiency by “correlating,” i.e., comparing the elevated level with the normal homocy-steine level. In sum, the specification and prosecution history confirm that the claim language “correlating,” in the understanding of one of ordinary skill in this art field
LabCorp also raises claim construction arguments in its challenge to the trial court’s assessment of damages. Specifically, LabCorp contends that only twenty percent of the assays have elevated levels of homocysteine and therefore only this percentage could form the basis for a damages award. As noted earlier, LabCorp itself urged the district court to define “correlating” to include either a mutual or a reciprocal relationship. In the damages calculation, however, LabCorp prefers to restrict the claim to correlations that yield mutual relationships while excluding any reciprocal relationships. This court declines the invitation to apply a different claim construction for computation of damages than for infringement liability.
As explained above, the mutual relationship is established when an elevated homo-cysteine level is present, whereas a reciprocal relationship is established when an elevated homocysteine level is absent. LabCorp’s new damages argument, in essence, attempts to change its claim construction position to read out the reciprocal relationship that it initially urged. This court, as it does now, has previously declined such invitations. Interactive Gift Express,
Direct Infringement
The jury found LabCorp liable for indirect infringement. The record must show the presence of direct infringement, however, to support the verdict of indirect infringement. Joy Techs., Inc. v. Flakt, Inc.,
Substantial evidence supports the jury’s verdict. The record shows that physicians order assays and correlate the results of those assays, thereby directly infringing. LabCorp’s Discipline Director, Dr. Peter Wentz, testified that the physicians receiving total homocysteine assays from LabCorp carry out the correlating step.
To support the verdict, the record does not need to contain direct evidence that every physician performed the “eorrelat-
Active Inducement
Section 271(b) of title 35 provides: “Whoever actively induces infringement of a patent shall be liable as an infringer.” 35 U.S.C. § 271(b) (2000). Although not express in the statute, this section requires proof of intent to induce infringement. See, e.g., Hewlett-Packard Co. v. Bausch & Lomb Inc.,
The record contains such evidence of intent. LabCorp’s own publications supply much of this evidence. Lab-Corp publishes both Continuing Medical Education articles as well as a Directory of Services that are specifically targeted to the medical doctors ordering the Lab-Corp assays. These publications state that elevated total homocysteine correlates to cobalamin/folate deficiency and that this deficiency can be treated with vitamin supplements. LabCorp’s articles thus promote total homocysteine assays for detecting cobalamin/folate deficiency.
Faced with these statements, LabCorp attempts to explain that these articles focus on heart disease rather than vitamin deficiency. As noted earlier, the patent does not require a correlation to some particular medical condition, but to a vitamin deficiency. The publications advocate use of the assay to identify a need for cobalamin/folate supplements. Thus, the vitamin deficiency remains the focus of the assay and the treatment (i.e., vitamin supplements).
Accordingly, a reasonable jury could find intent to induce infringement because LabCorp’s articles state that elevated total homocysteine correlates to cobalamin/fo-late deficiency. Moreover, the publications recommend treatment of this deficiency with vitamin supplements. Because “[i]ntent is a factual determination particularly within the province of the trier of fact,” Allen Organ Co. v. Kimball Int’l, Inc.,
Invalidity
A patent issued from the United States Patent and Trademark Office (PTO) bears the presumption of validity under 35 U.S.C. § 282. An accused infringer, therefore, must prove patent invalidity under the clear and convincing evidentiary standard. Advanced Display Sys., Inc. v. Kent State Univ.,
Claim IS
First, LabCorp contends that the “correlating” step in claim 13 is indefinite. 35 U.S.C. § 112, second paragraph, provides: “The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.” 35 U.S.C. § 112, ¶ 2 (2000). The requirement to “distinctly” claim means that the claim must have a meaning discernible to one of ordinary skill in the art when construed according to correct principles. Union Pac. Res. Co. v. Chesapeake Energy Corp.,
LabCorp next argues that the specification does not adequately describe the claimed invention under 35 U.S.C. § 112, first paragraph:
The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains or with which it is most nearly connected, to make and use the same....
35 U.S.C. § 112, ¶ 1. This language contains both the written description and en-ablement tests for sufficiency of the specification’s disclosure.
With regard to the written description test, this court has previously explained, “the test for compliance with § 112 has always required sufficient information in the original disclosure to show that the inventor possessed the invention at the time of the original filing.” Moba,
The specification also shows that the patentee enabled the claimed invention. In Union Pacific, this court held
The prior art reference (Refsum) does not anticipate claim 13 under 35 U.S.C. § 102. “A prior art reference anticipates a patent claim if the reference discloses, either expressly or inherently, all of the limitations of the claim.” EMI Group N. Am., Inc. v. Cypress Semiconductor Corp.,
To serve as an anticipation when the reference is silent about the asserted inherent characteristic, such gap in the reference may be filled with recourse to extrinsic evidence. Such evidence must make clear that the missing descriptive matter is necessarily present in the thing described in the reference, and that it would be so recognized by persons of ordinary skill.
Continental Can Co. v. Monsanto Co.,
Refsum does disclose that total homocysteine should be used to investigate “perturbations of homocysteine metabolism in humans during disease or pharmacological interventions that affect metabolism of one-carbon compounds.” Refsum, however, does not specifically mention co-balamin or folate deficiencies. Indeed, one of the '658 patent inventors, Dr. Stabler, testified that cobalamin and folate deficiencies constitute just such a perturbation that Refsum suggested warranted further investigation. Rather than necessarily containing the correlation between homo-cysteine and cobalamin or folate deficiencies, Refsum simply invites further experimentation to find such associations. An invitation to investigate is not an inherent disclosure. Construed most favorably for LabCorp, Refsum discloses no more than a broad genus of potential applications of its discoveries. A prior art reference that discloses a genus still does not inherently disclose all species within that broad category. See Corning Glass Works v. Sumitomo Elec. U.S.A., Inc.,
Moreover, the PTO considered Refsum in allowing the claims. The '658 patent itself discusses Refsum at length at column 6, lines 26-43 and the patent’s
The test of obviousness in 35 U.S.C. § 103 is the primary condition of patentability. Obviousness hinges on four factual findings: “(1) the scope and content of the prior art; (2) the differences between the prior art and the claims; (3) the level of ordinary skill in the art; and (4) objective evidence of nonobviousness.” Natl Steel Car, Ltd., v. Can. Pac. Ry., Ltd.,
Beyond these points, however, the record contains evidence of objective indicia that support the jury’s nonobviousness verdict. The record, for example, shows that skilled artisans were initially skeptical about the invention. See Hughes Tool Co. v. Dresser Indus., Inc.,
In sum, this court rejects LabCorp’s various attempts to invalidate claim 13. Accordingly, this court affirms the district court’s denial of LabCorp’s JMOL.
Claim 18
Unlike claim 13, which Metabolite specifically asserted in its motion for partial summary judgment, Metabolite also requested the district court to declare that claim 18 covers the panel test method. Specifically, Metabolite sought a declaration that LabCorp’s panel test that determines which particular vitamin is deficient infringes claim 18. The district court
Before this court can reach the merits of LabCorp’s validity challenge, however, it must first ascertain whether it has jurisdiction to consider this challenge. Subject matter jurisdiction is an inquiry that this court must raise sua sponte, even where, as here, neither party has raised this issue. Textile Prods., Inc., v. Mead Corp.,
Although not as common as the scenario in which the alleged infringer seeks declaratory judgment against the patentee, it is possible for a patentee to also seek a declaratory judgment against a future infringer. See Lang v. Pac. Marine & Supply Co., Ltd.,
The facts of this case, however, demonstrate that there is no real case or controversy regarding the LabCorp panel test, alleged to infringe claim 18. Neither party disputes that the license is still in effect as to the panel tests that LabCorp performs. This license is, in essence, a licensor’s covenant not to sue the licensee. Hilgraeve Corp. v. Symantec Corp.,
Breach of contract
The interpretation of a contract is a matter of state law. Power Lift, Inc. v. Weatherford Nipple-Up Sys., Inc.,
The jury found that “LabCorp breached the license agreement by terminating it” for the Abbott test. LabCorp contends that it did not formally terminate the contract, because the contract requires that the licensee provide written notice. The record contains no evidence of a written termination. The record does show, however, that LabCorp stopped paying royalties on the total homocysteine tests. Refusal to pay royalties is a material breach of the license. See Dow Chem. Co. v. United States,
Enhanced damages
LabCorp does not directly challenge the jury’s willfulness finding. Instead, Lab-Corp contends that the district court did not discuss the Read factors for enhanced damages. See Read Corp. v. Portec, Inc.,
To be sure, this court has enunciated its strong preference that a district court set forth its rationale for an award of enhanced damages to facilitate appellate review. Read,
First, this court considers the second Read factor, namely whether LabCorp conducted an investigation regarding the scope of the '658 patent in order to form a good-faith belief. Read Corp.,
LabCorp’s failure to conduct a reasonable and independent investigation regarding the Abbott total homocysteine test is further highlighted by the very terms of the license agreement between LabCorp and Abbott Labs. In the license agreement, Abbott Labs specifically excludes the '658 patent from a warranty covered by an indemnity provision. The warranty specifically excludes:
[A]ny claim of infringement which may arise under the subject matter of U.S. Patent 4,940,658 and any U.S. or foreign patents claiming priority therefrom or otherwise related thereto. Except with respect to the foregoing and at the time of signing this Agreement, Abbott has no reasonable knowledge of any infringement of third party patent rights that would arise from the use of the Imx Homocysteine Research Assay.
(emphasis added). By accepting this provision, LabCorp knew or. should have known that Abbott Labs believed the use of the Abbott test might infringe the '658 patent. This language in the license agreement would have put a reasonable licensee on notice to conduct its own'investigation regarding the '658 patent coverage of the Abbott total homocysteine test.
In addition to the second Read factor, the record also reflects that LabCorp is a large company with extensive financial means, i.e., Read factor four. LabCorp’s infringing activities of claim 13 began in 1998 without any attempts to remedy the infringement, Read factors six and seven, respectively. The district court therefore had evidence before it warranting consideration of at least four Read factors.
That the district court did not explicitly set forth its rationale for awarding Metabolite enhanced damages based on Lab-Corp’s willful indirect infringement is not fatal to its decision. As in Consolidated Aluminum, “[n]o useful purpose would be served by a remand to enable the district court to tell [this court] in express terms what [it] already know[s] from the record.”
Injunction
The district court granted Metabolite’s motion “to enjoin LabCorp from perform
LabCorp argues that the injunction is too broad because it extends beyond the scope of the claims. To the contrary, the injunction simply addresses LabCorp’s specific acts constituting indirect infringement. LabCorp performs the assays upon request from physicians and in doing so indirectly infringes. The district court correctly enjoined LabCorp from infringement. LabCorp also argues that the injunction is defective in form under the Federal Rules of Civil Procedure, because Rule 65(d) requires that a district court “set forth the reasons” for issuing an injunction. The district court’s order states that it “finds no sound reason for denying the injunction.” While this statement does not explicitly set forth detailed reasons, the district court properly granted the injunction because LabCorp was found to infringe. See W.L. Gore & Assocs., Inc. v. Garlock, Inc.,
CONCLUSION
The district court did not err in denying JMOL, awarding enhanced damages, and granting the permanent injunction.
COSTS
Each party shall bear its own costs.
AFFIRMED.
Notes
. This court, therefore, does not address the assaying step.
. Peter Wentz has a doctoral, not a medical, degree.
Concurrence Opinion
eoncurring-in-part, dissenting-in-part.
I agree with the majority’s conclusions with respect to validity, the absence of a case or controversy regarding infringement of claim 18, breach of contract, enhanced damages, and the district court’s injunction. However, I respectfully dissent from the majority’s construction of claim 18 of the '658 patent. Because I think claim 13 covers only the correlation of elevated levels of homocysteine, I would remand the case for a recalculation of the damages resulting from indirect infringement.
Claim 13 of the '658 patent is an independent claim for a two-step method:
13. A method for detecting a deficiency of cobalamin or folate in warmblooded animals comprising the steps of:
assaying a body fluid for an elevated level of total homocysteine; and
correlating an elevated level of total homocysteine in said body fluid with a deficiency of cobalamin or folate.
Col. 41, ll. 58-65. Proper construction of the terms “correlating” and “elevated” is dispositive of the issue of infringement of claim 13. The district court construed “elevated” to mean “raised above the normal range,” and “correlating” as “to establish a mutual or reciprocal relationship between.” Metabolite Labs., Inc. v. Lab. Corp. of Am. Holdings, No. 99-Z-870, slip op. at 2-3 (D.Colo. Nov. 29, 2000) (Markman Order). Disagreeing with neither of these constructions, the majority holds that when a patient’s homocysteine level is not “elevated,” claim 13 may nevertheless be infringed because “correlating” includes establishing both a mutual relationship and a reciprocal relationship. The majority states:
In essence, “correlating” means to relate the presence of an elevated total homocysteine level to either a cobalamin or folate deficiency, or both (i.e., a mutual relationship), and also to relate the absence of an elevated total homocy-steine level to a deficiency in neither(i.e., a reciprocal relationship).... [T]he specification and prosecution history confirm that the claim language “correlating,” in the understanding of one of ordinary skill in this art field at the time of invention, includes both a mutual relationship between the presence of an elevated level of homocysteine and a vitamin deficiency and a reciprocal relationship between the absence of an elevated level of homocysteine and no vitamin deficiency.
In my view, the majority impermissibly expands the scope of claim 13 beyond the actual words of the claim.
I begin with what I see as the controlling principles of claim construction. When interpreting the claims of a patent, the court should look first to the intrinsic evidence of record: the claim, the specification, and, if in evidence, the prosecution history. Vitronics Corp. v. Conceptronic, Inc.,
If the meaning of a claim term is clear on its face, consideration of the remaining intrinsic evidence is restricted to determining if a deviation from the clear language of the claim is specified. Interactive Gift Express, Inc. v. Compuserve Inc.,
Beginning with the ordinary meaning of the claim terms, I too do not disagree with the district court’s construction of the terms “elevated” and “correlating.” Nor do I disagree with the majority’s conclusion that the claim language does not require a further association between the level of total homocysteine and either a hematologic or neuropsychiatric abnormality or both. I cannot agree with the majority, however, that claim 13 is infringed when the test demonstrates that a patient’s homocysteine level is not “elevated.” The plain language of the claim requires “elevated” levels of homocysteine, and a heavy presumption weighs in favor of the ordinary and customary meaning of that term. CCS Fitness v. Brunswick Corp.,
There is no language in claim 13 addressing unelevated levels of homocy-steine, nor language that unelevated levels of homocysteine are to be correlated with the absence of a vitamin deficiency. Ordi
We have repeatedly stated that “[cjourts can neither broaden nor narrow claims to give the patentee something different than what he has set forth.” Tex. Instruments Inc. v. U.S. Int’l Trade Comm’n,
Relying on language from the specification and the prosecution history, the majority brings assays that demonstrate unelevated levels of homocysteine within the province of claim 13 by focusing its construction on the term “correlating.” The problem I have with this approach is that it ignores the term “elevated.” In addition, because the term “elevated” in claim 13 is unambiguous on its face, the specification and prosecution history of the '658 patent may be consulted only to determine if the patentee intended to deviate from ordinary meaning. Interactive Gift Express,
The normal range for homocysteine in human serum is from about 7 to about 22 ¡xmol/liter. Homocysteine levels above these ranges are indicative of co-balamin and/or folate deficiency....
Hí # ❖ ❖ ‡
When homocysteine levels are elevated in individuals without inherited defects, at least one of folate or cobalamin is deficient.
'658 patent, col. 9, ll. 23-29, 38-40 (emphases added). Nor is there any evidence from the prosecution history that the pat-entee relinquished this claim construction in an amendment or in an argument to overcome or distinguish a prior art reference. Vitronics,
Pursuant to this claim construction, claim 13 is only infringed when the assays performed by LabCorp reveal elevated levels of homocysteine. As LabCorp explains, and as Metabolite does not dispute, approximately eighty to eighty-four percent of the assays LabCorp processes reveal unelevated levels of homocysteine. I would therefore vacate the jury’s verdict that the assays resulting in unelevated levels of homocysteine infringed claim 13, and further vacate and remand the jury’s verdict on damages for recalculation based only on those infringing assays that demonstrate elevated levels of homocysteine.