News & Analysis as of

Patent Trial and Appeal Board §315(e) Appeals

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2024 PTAB Year in Review: Analysis & Trends

The Patent Trial and Appeal Board (PTAB) continues to play a pivotal role in shaping the intellectual property landscape. In 2024, several developments affecting PTAB practice emerged, from new rulemaking at the USPTO to key...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights Newsletter - May 2023: Beware of Collateral Estoppel at the PTAB

When thinking about estoppel and the PTAB, the § 315(e) estoppels—relating to grounds a petitioner raised or reasonably could have raised—are likely the first to come to mind. However, other types of estoppel, such as...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights - October 2020: Joinder Petitioner Has Different § 315(e)(2) Estoppel Than Original Petitioner

In Network-1 Technologies, Inc. v. Hewlett-Packard Company, the Federal Circuit vacated and remanded the district court’s holding that joinder petitioner Hewlett Packard (“HP”) (1) could have tried to raise new grounds in its...more

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