Case Citation
Legal Case Name

MOLECULON RESEARCH CORP. v. CBS, INC. Case Brief

United States Court of Appeals, Federal Circuit1986
793 F.2d 1261 Intellectual Property Civil Procedure

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Case Brief Summary & Legal Analysis

General Brief
4 min read

tl;dr: The inventor of a puzzle similar to the Rubik’s Cube sued for patent infringement. The court upheld the patent, finding that showing the invention to friends and assigning patent rights to an employer did not constitute a “public use” or “on sale” event that would invalidate it.

Legal Significance: This case clarifies that the 35 U.S.C. § 102(b) public use and on-sale bars are not triggered by an inventor’s private use among a small circle of colleagues or by the assignment of patent rights, distinguishing these acts from commercial exploitation of the invention itself.

MOLECULON RESEARCH CORP. v. CBS, INC. Law School Study Guide

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Case Facts & Court Holding

Key Facts & Case Background

Larry D. Nichols conceived of a 2x2x2 rotating cube puzzle in 1957. While a graduate student, he constructed paper models and showed them to a few close friends and colleagues without any express injunction of secrecy. In 1968, while employed at Moleculon Research Corp., he built a wooden prototype. In January 1969, Moleculon’s president saw the model and discussed commercialization. In March 1969, Nichols formally assigned his rights in the invention to Moleculon. The patent application was filed on March 3, 1970, establishing a critical date of March 3, 1969, for the purposes of 35 U.S.C. § 102(b). Moleculon, as the patent assignee, later sued CBS, Inc., the successor to Ideal Toy Corporation, for infringement based on its sale of the Rubik’s Cube puzzles. CBS defended by arguing the patent was invalid under § 102(b) because Nichols’ activities constituted a “public use” and the assignment to Moleculon was a “sale” of the invention occurring before the critical date.

Court Holding & Legal Precedent

Issue: Did an inventor’s demonstration of his puzzle to a few friends and colleagues, or his subsequent assignment of the invention rights to his employer, constitute a “public use” or place the invention “on sale” under 35 U.S.C. § 102(b), thereby invalidating the patent?

No. The court affirmed the district court’s holding that the patent was Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum d

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Legal Issue

Did an inventor’s demonstration of his puzzle to a few friends and colleagues, or his subsequent assignment of the invention rights to his employer, constitute a “public use” or place the invention “on sale” under 35 U.S.C. § 102(b), thereby invalidating the patent?

Conclusion

This decision provides significant precedent by narrowing the application of § 102(b) Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamc

Legal Rule

An inventor's use of an invention is not a "public use" under Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. E

Legal Analysis

The court addressed the "public use" and "on-sale" bars of 35 U.S.C. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation u

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Flash Summary

  • An inventor’s private use and display of an invention to friends,
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidata

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