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IP News

By Jeff Ginsberg and George Soussou
November 01, 2020

Federal Circuit: HP Not Estopped from Challenging Claims Deemed Unchallengeable in IPR That It Had Joined

On Sept. 24, 2020, a Federal Circuit panel of Chief Judge Prost, Judge Newman, and Judge Bryson issued a decision in Network-1 Techs., Inc. v. HP Co., No. 2018-2338 (Fed. Cir. 2020). In a unanimous decision, the Federal Circuit vacated the district court's finding that claims of U.S. Patent No. 6,218,930 (the '930 patent) were valid over the prior art, determined that the district court erred in its claim construction, and remanded to the district court for proceedings consistent with its opinion.

The '930 patent is directed to an apparatus and methods for "allowing electronic devices to automatically determine if remote equipment is capable of accepting remote power over Ethernet." Slip op. at 3. The '930 patent includes nine claims, including two independent claims: claims 1 and 6. Id. The '930 patent was subject to two reexamination proceedings: claims 6, 8 and 9 were confirmed as patentable and claims 10-23 were added in reexamination No. 90/012,401, and claims 6 and 8-23 were confirmed patentable in reexamination No. 90/013,444. Id. at 4-5.

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