VALVE CORP. v. IRONBURG INVENTIONS LTD.

2020-1315, 2020-1316, 2020-1379.

8 F.4th 1364 (2021)

VALVE CORPORATION, Appellant, v. IRONBURG INVENTIONS LTD., Cross-Appellant. Andrew Hirshfeld, Performing the Functions and Duties of the Under Secretary of Commerce for Intellectual Property and Director of the United States Patent and Trademark Office, Intervenor.

United States Court of Appeals, Federal Circuit.

Decided: August 17, 2021.


Attorney(s) appearing for the Case

Sharon A. Israel, Shook, Hardy & Bacon, LLP, Houston, TX, argued for appellant. Also represented by Kyle E. Friesen; Patrick A. Lujin, Kansas City, MO; Reynaldo Barcelo, Joshua Charles Harrison, Barcelo, Harrison & Walker, LLP, Newport Beach, CA.

Robert David Becker, Manatt, Phelps, & Phillips, LLC, San Francisco, CA, argued for cross-appellant.

Kakoli Caprihan, Office of the Solicitor, United States Patent and Trademark Office, Alexandria, VA, argued for intervenor. Also represented by Daniel Kazhdan, Thomas W. Krause, Farheena Yasmeen Rasheed.

Before Newman, Lourie, and Dyk, Circuit Judges.


Valve Corporation ("Valve") appeals two final written decisions of the Patent Trial and Appeal Board ("Board") determining that claims of U.S. Patent No. 9,289,688 ("the '688 patent") and U.S. Patent No. 9,352,229 ("the '229 patent") were not shown to be unpatentable. Ironburg Inventions Ltd. ("Ironburg"), the owner of the '688...

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