Ronald D. Schoenwald and Charles F. Barfknecht appeal from a decision of the Patent and Trademark Office Board of Patent Appeals and Interferences which affirmed the rejection of Claim 9 of Patent Application No. 257,826 for anticipation. Appeal No. 89-3349 (Dec. 17, 1990). We affirm.
Background
The application was filed on October 14, 1988, and claimed compounds which are used in ophthalmic compositions to treat dry eye syndrome. Claim 9, the only remaining claim, is to the most preferred compound, N-cyelohexyl-N-methyl-2-phenylethylamine, and its biologically acceptable salt forms.
As its name implies, dry eye syndrome is caused by a disruption in normal tear production, resulting in “dry eyes.” Previously, dry eye syndrome could only be treated by lubricating the eyes with artificial tear substitutes. This treatment was unsatisfactory because artificial tears dry quickly, and a sufferer of dry eye syndrome would have to apply the lubricant continually, as often as once an hour. In contrast, Schoenwald began using the compound set out in Claim 9, among others, as “tear stimulants” which, when applied topically to the eye, stimulate the lacrimal glands so they produce natural tears, eliminating the need for repeated reapplication. This method of treatment was claimed in the parent of the present application which resulted, on April 11, 1989, in U.S. Patent 4,820,737.
The Patent and Trademark Office Board of Patent Appeals and Interferences affirmed the examiner’s rejection of Claim 9 as anticipated under 35 U.S.C. § 102(b) (1988) by a printed publication, Bumgardner et al.,
J Org. Chem.,
Vol. 44, No. 14, “Reactions of Alkylbenzyldimethylammonium Halides with Amide in Liquid Ammonia,” pages 2348-54 (1979) (Bumgardner). Schoenwald does not dispute that the compound of Claim 9 is adequately described and enabled by Table 1, Scheme III and page 2353 of Bumgardner. Nor does he dispute that Bumgardner does not disclose
*1123
a utility for the compound. His argument is that a reference must disclose a utility before it can be an anticipatory reference under section 102(b). Relying on
In re Hafner,
Discussion
Paramount among the patentability requirements is that that which is sought to be patented must be new.
Titanium Metals Corp. of America v. Banner,
Even before the 1952 Patent Act, the Supreme Court stated, “If A without mentioning the element of strength patented a bulb which was extra strong, B could not obtain a patent on the bulb because of its strength, though he was the first to recognize that feature of it.”
General Elec. Co. v. Jewel Incandescent Lamp Co.,
[The patentee] found latent qualities in an old discovery and adapted it to a useful end. But that did not advance the frontiers of science in this narrow field so as to satisfy the exacting standards of our patent system. Where there has been use of an article or where the method of its manufacture is known, more than a new advantage of the product must be discovered in order to claim invention.
Id.
at 248,
The first case to address the issue under the 1952 Patent Act was
In re Hafner,
In essence, appellant is contending that a double standard should not be applied in determining the adequacy of a disclosure to anticipate under § 102, on the one hand, and to support the patentability of a claim under § 112 on the other. He *1124 feels that a disclosure adequate for the one purpose is necessarily adequate for the other but, unhappily for him, this is not so. As we shall develop, a disclosure lacking a teaching of how to use a fully disclosed compound for a specific, substantial utility or of how to use for such purpose a compound produced by a fully disclosed process is, under the present state of the law, entirely adequate to anticipate a claim to either the product or the process and, at the same time, entirely inadequate to support the allowance of such a claim.
Id.
at 1405,
Only recently, this court reiterated, “The discovery of a new property or use of a previously known composition, even when that property and use are unobvious from the prior art, can not impart patentability to claims to the known composition.”
In re Spada,
discovery of an unobvious property and use does not overcome the statutory restraint of section 102 when the claimed composition is known. While Spada’s position is that his polymers are not anticipated by the polymers of Smith because their properties are different, Spada was reasonably required to show that his polymer compositions are different from those described by Smith. This burden was not met by simply including the assertedly different properties in the claims. When the claimed compositions are not novel they are not rendered patentable by recitation of properties, whether or not these properties are shown or suggested in the prior art.
So it is beyond argument that no utility need be disclosed for a reference to be anticipatory of a claim to an old compound. The compound appellants are attempting to patent is not new — the use they discovered is, and they received a method patent for that. Their complaint that this is insufficient because their reward should be consistent with the full extent of their contribution is hollow. Their contribution was finding a use for the compound, not discovering the compound itself. Therefore they are being rewarded fully for their contribution; any more would be a gratuity.
Conclusion
Accordingly, the decision of the board is affirmed.
AFFIRMED.
