COSMOKEY SOLUTIONS GMBH & CO. KG v. DUO SECURITY

2020-2043.

15 F.4th 1091 (2021)

COSMOKEY SOLUTIONS GMBH & CO. KG, Plaintiff-Appellant v. DUO SECURITY LLC, fka Duo Security, Inc., Defendant-Appellee.

United States Court of Appeals, Federal Circuit.

Decided: October 4, 2021.


Attorney(s) appearing for the Case

Scott Thomas Weingaertner , White & Case LLP, New York, NY, argued for plaintiff-appellant. Also represented by Stefan Mentzer , Grace Wang , Matthew Robert Wisnieff .

Mark A. Lemley , Durie Tangri LLP, San Francisco, CA, argued for defendant-appellee. Also represented by Bethany Bengfort .

Concurring opinion filed by Circuit Judge Reyna.


CosmoKey Solutions GmbH & Co. KG appeals the United States District Court for the District of Delaware's entry of judgment on the pleadings holding that the asserted claims of CosmoKey's U.S. Patent No. 9,246,903 are ineligible under 35 U.S.C. § 101. The district court held that the asserted claims are directed to...

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