LSI Corp. v. Regents of the University of Minnesota, No. 21-2057 (Fed. Cir. 2022)
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The 601 patent addresses error rates related to recording data to computer storage devices. Dr. Moon, a UMN professor, and Dr. Brickner, a UMN graduate student, developed maximum transition-run coding to reduce error-prone patterns; their work became the basis for the 601 patent. UMN sued LSI for infringement. On inter partes review, the Patent Trial and Appeal Board concluded that claim 13 was unpatentable in view of prior art (Okada) and that claims 14 and 17 were not unpatentable in view of either Okada or the Tsang prior art reference; the Tsang reference was not prior art because it was not “by another” under 35 U.S.C. 102(e).
The Federal Circuit affirmed. The Board properly found that the material in the Tsang patent that exceeded the disclosure of the Seagate Report was not relevant to the anticipation challenge to claims 14 and 17 and that summarizing the Seagate Report in Tsang did not make Tsang an inventor of the material. There is no contention that the Seagate Report can be relied upon as prior art to the 601 patent since Dr. Moon and Dr. Brickner are both listed as the only authors of the Seagate Report and as the only inventors of the 601 patent.
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