King Pharmaceuticals, Inc. v. Teva Pharmaceuticals USA, Inc.King Pharmaceuticals, Inc. v. Teva Pharmaceuticals USA, Inc.
OPINION
I. INTRODUCTION
Plаintiffs King Pharmaceuticals, Inc. (“King Pharma”) and King Pharmaceuticals Research and Development, Inc. (“King R & D”) (together, “King”), as well as involuntary Plaintiff Wyeth,
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brought this action for patent infringement against Defendant Teva Pharmaceuticals USA, Inc. (“Teva”). King alleges that Teva has infringed one or more claims of United States Patent No. 4,626,538 (“the '538 Patent”), owned by Wyeth, under which King R & D has exclusive license and King Pharma exclusive sub-license to sell zaleplon drug products in the United States. This Court has jurisdiction under
II. BACKGROUND
This is a patent infringement action commenced by King against Teva under the '538 Patent. 2 Wyeth is the owner of the '538 Patent. (Compl.¶ 13). King R & D has an exclusive license, inter alia, to sell, by prescription, zaleplon drug prоducts in the United States under the '538 Patent. (Compl.¶ 14). King Pharma has an exclusive sub-license to sell such products. King Pharma sells in the United States, by prescription, drug products containing zaleplon under the trademark Sonata®, which is used to treat insomnia. (Compl. ¶ 14; King’s Br. at 3). An FDA publication entitled “Approved Drug Products with Therapeutic Equivalence Evaluation” (the “Orange Book”) 3 lists the '538 Patent as being applicable to King’s Sonata® drug products. (Compl.¶ 16).
From the Complaint and thе motion papers, the Court understands the history of the '538 Patent to be as follows. The '538 Patent was issued on December 2, 1986. (Compl. ¶ 9; Compl. Ex. A). The 538 Patent is subject to a terminal disclaimer.
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(Compl.Ex.A). The application for what ultimately became the '538 Patent was initially rejected on the ground that it claimed the same invention that was claimed in an earlier patent, U.S. Patent No. 4,521,422 (“the '422 Patent”), and the '538 Patent was granted only after the applicant filed a terminal disclaimer under
However, on June 4, 2003, pursuant to
This action relates to an Abbreviated New Drug Application (“ANDA”) filed by Teva with the United Stated Food and Drug Administration (“FDA”) for approval to market generic versions of King’s Sonata® drug products (“ANDA No. 77-239”). (Compl.lffl 1,15). In a June 20, 2005 notification letter Teva sent to King and Wyeth, Teva stated that it had submitted ANDA No. 77-239 to the FDA seeking approval to engage in the commercial manufacture, use, and sale of capsules of zaleplon. (Compl.¶¶ 15, 16). King alleges оn information and belief that ANDA No. 77-239 indicates that the zaleplon capsules Teva seeks to market are bioequivalent to King’s Sonata® drug products, have the same active ingredient, administration, dosage form, and strength as King’s Sonata® drug products, and have the same, or substantially the same, proposed labeling as King’s Sonata® drug products. (Compl.¶ 18).
King filed its Complaint on August 2, 2005, alleging that Teva’s ANDA filing constitutes patent infringement and that, if the FDA approves Teva’s ANDA filing, Teva will infringe the '538 Patent by making, using, offering to sell, importing, and selling its zaleplon capsules in the United States. (Compl.¶ 20-21). King seeks a declaratory and injunctive relief, damages, attorneys’ fees, and costs and expenses. On September 22, 2005, Teva moved to dismiss the Complaint for failure to state a claim upon which relief can be granted. The Court heard oral argument on Teva’s motion on December 20, 2005. The crux of Teva’s argument is that the term of a terminally disclaimed patent may not be extended under
III. STANDARD OF REVIEW
Teva argues that the '538 Patent expired on June 23, 2003 as a matter of law and that, because no valid and enforceable
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patent is being asserted, the Complaint fails to state a claim for relief. Under
IV. DISCUSSION
A. The Parties’ Arguments
Teva’s allegation that the '538 Patent expired on June 23, 2003 as a matter of law is premised on the argument that the term of a patеnt subject to a terminal disclaimer under
In opposition, King argues that
B. Terminally Disclaimed Patents Are Not Barred from Obtaining a
1. The Language of
Because Teva challenges the legality of the
a) The term of a patent which claims a product, a method of using a product, or a method of manufacturing a product shall be extended in accordance with this section from the original expiration date of the patent, which shall include any patent term adjustment granted undersection 154(b) , if—
(1) the term of the patent has not expired before an application is submitted under subsection (d)(1) for its extension;
(2) the term of the patent has never been extended under subsection (e)(1) of this section;
(3) an application for extension is submitted by the owner of record of the patent ...;
(4) the product has been subject to a regulatory review period before its commercial marketing or use;
(5)(A) except as provided in subparagraph (B) or (C), the permission for the commercial marketing or use of the product after such regulatory review period is the first permitted commercial marketing or use of the product under the provision of law under which such regulatory review period occurred;....
Further,
Moreover, as noted, Congress еxpressly listed conditions necessary for obtaining a
Accordingly, there is no textual basis in
2. Comparison of
Comparison of
As an initial matter,
3. PTO Regulation
Further support for the conclusion that a terminally disclaimed patent is not barred from obtaining a
If a determination is made pursuant to § 1.750 that a patent for a human drug, antibiotic drug or human biological product is eligible for extension, the term shall be extended by the time as calculated in days in the manner indicated by this section. The patent term extension will run from the original expiration date of the patent or any earlier date set by terminal disclaimer (§ 1.321).
The parties do not appear to dispute that the Congress has not granted the PTO Commissioner substаntive rulemaking authority, and thus that while Regulation
Regulation
C.
In an effort to circumvent the plain, unambiguous language of
Whenever, without any deceptive intention, a claim of a patent is invalid the remaining claims shall not thereby- be rendered invalid. A patentee, whether of the whole or any sectional interest therein, may, on payment of the fee required by law, make disclaimer of any complete claim, stating therein the extent of his interest in such patent. Such disclaimer shall be in writing, and recorded in the Patent and Trademark Office; and it shall thereafter be considered as part of the original patent to the extent of the interest possessed by the disclaimant and by those claiming under him.
In like manner any patentee or applicant may disclaim or dedicate to the public the entire term, or any terminal part of the term, of the patent granted or to be granted.
35 U.S.C. 253 (2005). Nothing in the language of
To bolster its argument, Teva turns to the policies underlying and legal effects of
However, as discussed above, neither the terms of
Further, while the Court is not unmindful of the policy implications Teva raises, the Court notes that Congress has previously enacted legislation the effects of
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which have been to alter the termination date of terminally disclaimed patents and to enlarge the time limits of a patentee’s right to exclude. In support of its arguments, Teva emphasizes the principle that upon the expiration of the right to exclude conveyed by a patent, the public is free to use the invention as well as obvious modifications thereof. (Teva Br. at 10, 12). However, in the Uruguay Round Agreements Act (“URAA”), Congress altered the term of the patent owner’s right to exclude from 17 years from issue date to 20 years from filing date, and allowed patents then in force to utilize the greater of the 20-year or the 17-year period.
See, e.g., Bayer AG v. Carlsbad Tech., Inc.,
In addition, Congress previously provided for the alteration of the termination date of a terminally disclaimed patent. Where the expiration date of a terminally disclaimed patent had been linked to a patent the term of which, by operation of the URAA, was automatically substituted for a later date, the expiration date of the terminally disclaimed patent was held to also automatically shift to that later date.
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See Bayer AG,
Thus, Congress previously enacted legislation affecting the duration of the patent term and the termination date of terminally disclaimed patents.
V. CONCLUSION
For the reasons expressed above, the Court concludes that a terminally disclaimed patent is eligible for extension under
Notes
. King named Wyeth as an involuntary plaintiff to this action pursuant to
. The '538 Patent is entitled "[7-(3-Disubsti-tuted Amino)Phenyl]Pyrazolo[1,5-a]Pyrimidines.” (Compl. ¶ 9; Compl. Ex. A).
.The FDA’s Orange Book is "a register that provides
notice
of patents covering
name
brand drugs.”
Pharmacia Corp. v. Par Pharm.,
. Teva also refers to the existence of a third patent application, which ultimately issued as U.S. Patent No. 4,654,347, that was a “sister” to the application that issued as the '538 Patent. (Teva Br. at 2, 4 n. 2).
. Tevа has not argued that the enumerated conditions were not satisfied.
. Pub.L. No. 103-465, § 532 (1994) amended
*615 (2) EXTENSION FOR APPELLATE REVIEW. — If the issue of a patent is delayed due to appellate review by the Board of Patent Appeals and Interferences or by a Federal court and the patent is issued pursuant to a decision in the review reversing an adverse determination of patentability, the term of the patent shall be extended for a period of time but in no case more than 5 years. A patent shall not be eligible for extension under this paragraph if it is subject to a terminal disclaimer due to the issue of another patent claiming subject matter that is not patentably distinct from that under appellate review.
Pub.L. No. 103-465, § 532 (1994) (emphasis added).
. Congress amended both
. The PTO has confirmed its position that terminally disclaimed patents are eligible for
TERMINALLY DISCLAIMED PATENTS ARE ELIGIBLE
A patent may bе extended under 35 U.S.C. 156 even though it has been terminally disclaimed. A patent term extension under 35 U.S.C.156 is a limited extension of the patent rights associated with the approved product that is attached onto the original term of the patent. See 35 U.S.C. 156(b). Only one patent may be extended for a regulatory review period for any product, and 35 U.S.C. 156 sets the expiration date of a patent term extension. Although 35 U.S.C. 154(b)(2)(June 8, 1995) precludes a patent from being extended under 35 U.S.C. 154(b)if the patent has been terminally disclaimed due to an obviousness-type double patenting rejection (see MPEP § 2720), there is no such exclusion in 35 U.S.C. 156. Additionally, 35 U.S.C. 154(b)(2)(B)(May 29, 2000) provides that a patent cannot be adjusted beyond the date set by the disclaimer (see MPEP § 2730), but there is no similar provision in35 U.S.C. § 156 . Thus patents may receive a patent term extension under35 U.S.C. § 156 beyond an expiration date set by a terminal disclaimer.
*616 MPEP 2751, Rev.2, at 2700-30(E8) (available at http://www.uspto.gov /web/offices/pac/mp ep/documents/2700' — 27 51.htm).
. See Pub.L. No. 100-670, § 201 (1988); Pub.L. No. 103-179, §§ 5, 6 (1993); Pub.L. No. 103-465, § 532 (1994); Pub.L. No. 105-115, § 125 (1997); Pub.L. No. 106-113, §§ 4404, 4732 (1999); Pub.L. No. 107-273, § 13206 (2002).
. Notably, as referenced above, the termination date of the '538 Patent apparently was extended from June 3, 2002 to June 23, 2003 as a result of the URAA.