156 F.2d 250 | C.C.P.A. | 1946
Lead Opinion
delivered the opinion of the court:
This is an appeal from the decision of the Board of Appeals of the United States P’atent Office affirming that of the Primary Examiner
Tlie present invention relates to new disinfectants, and more particularly to certain organic mercury compounds which are especially effective against plant pests and micro-organisms with the result that they may be used for all purposes of preserving and disinfecting, for example, in the immunizing of seed grain, the prevention of mildew formation, the preservation of wood, in the preservation of glue and the like.
It appears that claims 1, 2, 3, 7, 8, and 9 are generic in character. The others are species claims and are, as stated, in substance, in the brief of the Solicitor for the Patent Office, divisible into three groups, (1) Nos. 4, 10, and 13, specific to the use of mercury acetates; (2) claims 5,11, and 14, specific to the use of organic mercury hydroxides, and (3) claims 6, 12, and 15, specific to the use of organic mercury chlorides.
Inasmuch as all the generic claims were rejected, appellant was required under Patent Office rule 41 to elect one species for prosecution. He elected the mercury acetate group, that is, claims 4,10, and 13.
In consequence, none of the other species claims received considera- ■ tion on their merits by the tribunals of the Patent Office. The examiner held them “not readable on the elected species,” and the board held them “not entitled to examination in this case in the absence of an alloAvable generic claim.”
Generic claim 1 reads as follows:
1. The method of protecting organic materials subject to attack by plant pests and microorganisms which comprises treating the said materials with an organic mercury compound of the general formula:
in which Ei denotes an organic group containing in addition to hydrogen only one negative substituent, R2 denotes hydroxyl or a radical having the capacity of forming a salt with mercury, and Es, E4, Es and E» are selected from the group consisting of hydrogen, alkyl, aryl and aralkyl radicals. [Italics supplied.]
Species claim 4 (the first in number of the particular group of species claims selected for prosecution) reads:
4. The method of protecting organic materials subject to attack by plant pests and microorganisms which comprises treating the said materials with an organic mercury compound of the general formula:
*1226 in which Ri denotes an organic group containing in addition to hydrogen only one, negative substituent selected from the group consisting of cyanogen, thio-cyanogen, halogen, alkyloxy and carbalkoxyl radicals. [Italics supplied.]
It will be observed that we have italicized the language, “only one negative substituent,” appearing in the claims. This language, or phrase, appears in all the claims and is stressed by appellant.
We deem it proper to state at this point that counsel for appellant, although present at the' heariiig before us; declined' to avail himself of his right under the rules of the court to present an oral argument, either by way of a preliminary opening statement, or by way of reply to the statements and arguments made orally by the Solicitor for the Patent Office, although he was invited to do so. Further, it.may be said that he did not file, or seek to file, any reply brief to-the-brief of the Solicitor for the Patent Office, which, of course, was filed subsequent to his.
The brief of the solicitor presents a comprehensive analysis of the involved claims based upon the disclosures of the specification and compares them in considerable detail with the showing of the references.
• -The brief for appellant states that the formula embraced in generic claim 1, supra, is the general formula used in the claims and that the “P’s represent certain designated elements or radicals.” In view of this statement it is deemed unnecessary to quote the other claims here involved, since it is obvious that they stand or fall together.
In rejecting the claims (both the generic and elected species claims) the examiner cited two patents, viz:
Gornitz et al., 2,145,594, January 31,1939.
Callsen 2,119,701, June 7,1938.
Specifically, the examiner,.in his statement following the appeal to the board, said: “The * * * claims stand rejected as unpatentable over Gornitz, considered with Callsen,” and thereafter analyzed what he deemed to be the pertinent features of the references.
The board rendered two written decisions in the case, the first dated October 12, 1944. Following it appellant filed a request for reconsideration in which the board was severely criticized for its failure to discuss-as fully as counsel for appellant thought necessary certain of the issues raised before it.
In a well-tempered response the board further discussed appellant’s contentions, but adhere to its original conclusion.
The board gave little attention to the Callsen patent, saying that it was regarded as merely cumulative. It was not overruled as a reference, however, and it is discussed to some extent in the brief of the
In other .words, he [Callsenl was totally unaware that many of his initial reactants were themselves efficient seed disinfectants so that it was unnecessary to go through the complicated reaction proposed by him in order to arrive at substances having these desirable properties.
On the other hand, the brief of the Solicitor for the Patent Office asserts (references to record .pages being omitted) :
The fact, of the ¡matter ns that Oallsen. .specifically discloses * * * as a starting material or reactant, chloroethoxyethyl mercuric hydroxide. This is the hydroxy compound which Migrdiehian asserts may be obtained by the«action of dilute alkalies on the /3-chloroethoxyethyl mercury acetate, his “typical” compound * * *. The disclosure in the Oallsen patent of chloroethoxyethyl mercuric hydroxide effectively refutes Migrdichian’s statement * * * that such compounds are new.
The examiner found the Oallsen patent to be pertinent as showing; that no invention resides in modifying the Gornitz et al. compounds so that they include a single negative substituent.
The foregoing assertion, which accords with the statement of the examiner is not answered by appellant, and we have no reason to doubt its accuracy.
We are confronted here with questions relating to chemical compounds and formulas which are technical in character. In such cases, where the findings of the examiner are not overruled by the board and are not questioned by the applicant, as is the situation here, we accept them without question.
The Gornitz et al. patent embraces both product and method claims. The method claims, however, are for. the method of prodiioing the products defined in the product claims. The claims here at issue, as may be seen from generic claim 1, supra, are for the method of protecting organic materials against plant pests, etc., by using the product defined in the formulas.
The patent recites that it relates to seed disinfectant compositions containing certain organic derivatives of mercury, stating that it is
1. A seed disinfectant composition, comprising an organic mercury compound of the structural formula
wherein Y represénts an acid radical taken from the class consisting of inorganic and lower fatty acids, R a trihalogenated alkyl radical, R' is a radical taken from the class consisting of hydrogen and lower alkyl radicals and R" is a radical taken from the class consisting of hydrogen and lower saturated hydrocarbon radicals. ..
The brief of the Solicitor for the Patent Office, after quoting the foregoing formula from the patent (references to the record pages being omitted as indicated by stars) proceeds:
Y in the patentees’ formula may represent * * * the acid radical, acetoxy (OCOOBL), or halogen (chlorine, Cl, e. g.) ; in these respects Y has the same values as R2 in appellant’s general formula * * *. Continuing to compare these two formulas element by element, progressing toward the left, the next substituent is mercury (He) in both. Next in the patentees’ formula, R" may, for one thing, denote hydrogen (H) ; and to that extent it is, in its four appearances, identical with appellant’s R3, R4, Re, and R«. The linking oxygen (O) in both formulas is the same. Upon analysis, it is thus apparent that Migrdi-chian’s disinfecting compounds and the disinfectant compositions of the paten-tees, Gornitz et al., have, in large part, the same chemical construction. They differ in structure only to the extent that group Ri of Migrdichian differs from the patentees group R — CH—.
OR'
Upon the basis of the disclosures of the application and the patent, this difference is not great. In the patent * * * R may, inter alia, be a halogenated alkyl, of which ehlorethyl (Cl CH2CH2 — would be an example. ■ Such a constituent is comprehended in Migrdichian’s definition of Ri * * * as an “or-, ganie group * * * containing, in addition to hydrogen, at least one negative substituent, e. g., cyanogen, thiocyanogen, halogen, alkyloxy, carbalkoxyl and the like,” and the very substituent here cited as an example is included in Bfigrdichian’s “typical” compound /3-chlorethoxyethyl mercury acetate * * *. The —CH— appears in the patentees’ formula merely to show the linkage of the OR' (as it does in like manner in the formula of a-carbethoxyethyloxethyl mer-' cury acetate, which formula appears in example 3 on page 5 of the record) ; and so. the patentees’ formula and Migrdichian’s differs only in the —OR'— substituent where O is oxygen and R' is hydrogen (H), or an alkyl sueh-as methyl (CHs).
Migrdichian’s definition of Ri in his specification does not exclude such a sub-stituent as the patentees’ OR', for Migrdichian there recites * * * that his Ri group contains “at least one negative substituent,” which means that the Ri group may contain more than one negative substituent. Only Migrdichian’s claims are restricted; the claims call for “only one negative substituent.”
In the'brief on behalf of appellant it is asserted, the italics quoted:
Many ol the compounds used in the method claims are new materials Twmng never before been made or mentioned.
Assuming that appellant used compounds consisting of new materials, etc., in the making of his ultimate product, the fact remains that he made no claim for patentability of a new product independently of using it.
We are not convinced that appellant made a product different in a patentable sense from the products described in the prior art cited.
Nothing patentable over Callsen’s ultimate product is -found in appellant’s ultimate product.
The Gornitz et al. patent discloses throughout that the product was developed to be used for the prevention of ravages by insects upon seeds. It did not claim its use for the purpose developed, supposedly for the reason that every person possessing ordinary intelligence, even if not “skilled in the art” of immunizing seed, would understand the purpose.
Owing to the fact that appellant’s product does not differ patent-ably from those disclosed by the prior art, and as the prior art teaches that products of the general type as that defined by the appealed claims are useful in “protecting organic materials [such as seeds] subject to attack by plant pests and microorganisms,” the claims on appeal, which define no particular method of treatment, are clearly not patentable over the references of record.
For the reasons stated, the decision of the Board of Appeals is affirmed.
Concurrence Opinion
specially concurring.
I agree that, in view of the product being old or so similar to other products in the prior art as to suggest its use as a disinfectant, appellant is not entitled to a patent for a method of protecting organic materials with the use of his stated materials.
I concur specially because it is settled law that one may have a patent for a method of treating plant life with an old substance, or even a patented substance (subject, of course, to the patent), if its application as a disinfectant was new, unobvious, and useful. Since the majority opinion does not clearly so state and since the latter part of the opinion is so limited in its discussion of the differences between the inventor of a product and the inventor of a process as not to distinctly differentiate between the disinfectant product and the process of using it I feel called upon to cite and discuss the authorities mentioned below.
It is our opinion that not only is the weight of authority contrary to appellant’s contention, but that it is clearly contrary to the spirit, and in our opinion contrary to the letter of the patent laws that patents should be granted for old compositions of matter based upon new uses of such compositions where such uses consist merely in the employment of such compositions.
* * * * * *
The doctrine is so familiar as not to require citation of authority that a patentee is entitled to every use of whicli his invention is susceptible, whether such use be known or unknown to him. Likewise, with regard to an unpat-entable article or substance long in use, any member of the public has the right to every use of which the article or substance is susceptible so long as it is unchanged in any way, regardless of whether or not such uses were known prior to his own use.
Of course, any patentee is entitled to every use of bis material. This does not prevent another from getting a patent upon the use of the patentee’s particular material as a disinfectant if that use was not obvious and was foreign fronl its known use. The new inventor, however, could only practice his invention with the consent of the patentee, but with such consent he could prevent others from using it as a disinfectant and on the expiration of the article patent he would have a monopoly on its use as a disinfectant.
The latter part of the majority opinion implies, I think, that one cannot get a method patent for the use of an old compound as a disinfectant. This portion of the opinion would seem to suggest that unless he was the inventor of the compound he is not entitled to a patent for a method of its use in immunizing seeds.
While the opinion does not cite the Thuau case, the Solicitor for the Patent Office has quoted abundantly from it in his brief and states:
Involved in tbe issues presented by tbe present appeal is tbe question whether application of tbe doctrine of In re Thuau, supra, can be avoided by calling tbe use of an old compound a process, and expressing that use in claims drawn in broad method form. Single-step method claims of the same character as those here appealed have previously been before this Court as in In re Christensen, 468 O. G. 277, 23 C. C. P. A. 1015, 82 F. (2d) 715; and In re Jones, 533 O. G. 1052, 28 C. C. P. A. 1302, 120 F. (2d) 1019, but the Court apparently has not heretofore had reason to pass upon the question which this appeal raises.
The Board has several times ruled that where invention is involved in the discovery of the asserted new use of an old compound, that new use may he*1231 protected Toy a process patent. Ex parte Chamberlain, 2 USPQ 145; Ex parte Kurts, 15 USPQ 149; Mw parte Bosland, 44 USPQ 695. Conversely, where the new use is obvious, such protection should be denied. The use of the compounds here claimed by Migrdiehian for, generally, treating organic materials, and, specifically, immunizing seed, is an obvious use. [Some italics mine.]
It would seem from the foregoing that the Solicitor, in view of the authorities cited, is of the opinion that a new use of an old compound may be'protected by a process patent if its use was not obvious, and apparently he is inviting óomment upon the Thuait case and does not urge its soundness.
I think the majority, while in effect applying the doctrine of the Thuau case, should frankly discuss it and rely upon it if they are of the opinion that it is controlling in the instant case.
I shall briefly analyze the authorities cited, supra, by the Solicitor and other authorities relating to the question as to the propriety of granting method claims in a patent for a new, unobvious, and useful purpose of an old compound, etc.
Ex parte Chamberlain, 2 USPQ 145, involved a “method of pickling metals. It was found that the pickling bath itself, containing the particular proposed reagent, was not anticipated by the prior art, and the examiner was of the opinion that the bath could be allowed as a new pickling bath. Under these circumstances, the Board of Appeals said:
* * * we believe it is equally true that a new process is involved in applying it [the bath]. Such process should include the positive step of. immersing metal in the bath containing the essential identified ingredients.
Ex parte Kurtz, 15 USPQ 149, involved a method of securing rubber to metal. The general steps of the process were old. The board held applicant’s material was not the same as that of the prior art references and stated:
Patents are frequently granted and sustained for. improved processes wherein the improvement resides solely in the substitution of a material not known to be an equivalent. The case of Tolfree v. Wetzler 25 F. (2d) 553 is illustrative. * * * Their equivalency may be apparent after appellant’s teaching but their availability is in no way suggested by any cited art.
The case cited by the board, Tolfree v. Wetzler et al., 25 F. (2d) 553 (C. C. A. 3rd), involved a method of stopping leaks. An old composition, gambier (extract from certain trees or shrubs), which “had been used for years in the tanning art and in other ways” and whose “qualities were known” was used in suspension in water to stop leaks. ■ Such use was held to be invention.
Ex parte Bosland, 44 USPQ 695, involved the method of sizing cellulose textile materials. The prior art showed a similar composition used for an entirely different purpose. In its decision the board stated, “Assuming the composition per se to be old, this case involves the protection of a new use thereof,” and allowed the claims.'
Tlie following statement from Corpus Juris (48 C. J. 77) summarizes tlie law on this point:
[§S4] 17. AotucatioN to New Use. — The application of an old method or device to a similar or analogous subject with no change in the manner of applying it and no result substantially distinct in its nature is not invention. This is true, even if the new form of result has not before been contemplated, and regardless of how remote the new use may be from the old if no changes or modifications in the old device are necessary to adapt it to the new use. Invention is not involved in the mere conception of applying an old method or device to a new use. Even though changes or modifications are essential to the practical application of the method or device to the new use, invention is not involved if the new use is so analogous to the old that the thought of adapting the device and applying it to the new use would occur to a person skilled in the art and seeking to devise means to perform the desired function. The adaptation of the new device does not constitute invention, even though advantages not otherwise procurable are attained. On the other hand, invention is involved where0the new ■use is so remote from that to which the method or device has been applied, or .for which it was conceived,, that the thought of making the necessary modifications and, changes and applying it to the new use would not occur to a person ■shilled in the art and seeking means by which the desired, function could be performed. It is immaterial that once given the thought of applying the old method or device to the new use, the changes or modifications necessary to make the thought practical are obvious. [Italics added.] ' •
From Walker on Patents, Deller’s Edition, Volume One, pages 226 et seq.j tlie following statements are quoted :
It is not invention to use an old process for a new and analogous purpose.
* * * An old composition of matter applied to a new and analogous use does not involve invention. , .
It may be invention, to use an old process, machine, manufacture, composition of matter, or design, for a new and non-analogous purpose. (Potts v. Creager, 155 U. S. 597, 608; etc., etc.)
The courts have held that, while gravity is a simple, well understood force, a novel application of it to increase utility in an existing machine may be invention Qf a high order. (Bibel Process Co. v. Minn. Paper Co., 261 U. S. 45.)
It should be noted that all of the appealed claims involved in tlie instant case are method claims and that the latter part of the majority opinion stresses tlie fact tliat appellant was not the inventor of the product.
I agree that in the instant case- the appellant, in his claims, defines an obvious use of an old compound, ór one so closely related to the old one that its use as a disinfectant would be obvious, and he is not entitled to the allowance of his claims.
