News & Analysis as of

Patent Infringement Collateral Estoppel Motion to Dismiss

Patterson Belknap Webb & Tyler LLP

If at First You Don’t Succeed, Do Not Try Again: Judge Oetken Invokes Collateral Estoppel to Dismiss Plaintiff’s Infringement...

On July 9, 2025, Judge J. Paul Oetken (S.D.N.Y) found that collateral estoppel barred plaintiff Linfo IP, LLC from relitigating the validity of its asserted patent and dismissed Linfo’s infringement claims against Aero...more

Jenner & Block

Inter Partes Review Invalidity Finding Does Not Collaterally Estopell Assertion of Unchallenged Claims in Same Patent

Jenner & Block on

In a February 10, 2025 order, the Federal Circuit Court of Appeals rejected the application of the collateral estoppel doctrine to patent claims asserted in a district court infringement action where other claims in the same...more

Holland & Knight LLP

SDNY: Collateral Estoppel Halts Social Media Patent Case

Holland & Knight LLP on

In late 2018, Plaintiff NetSoc sued Chegg in the U.S. District Court for the Southern District of New York (SDNY), alleging infringement of a patent directed to "establishing and using a social network to facilitate people in...more

Schwabe, Williamson & Wyatt PC

Latest Federal Circuit Court Cases - November 2018 #3

ArcelorMittal Atlantique Et Lorraine v. AK Steel Corporation, Appeal No. 2017-1637 (Fed. Cir. Nov. 14, 2018) - In an opinion originally filed as sealed on Nov. 5 and unsealed on Nov. 18, the Federal Circuit vacated and...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Latest Federal Circuit Court Cases

PATENT CASE OF THE WEEK - Ottah v. Fiat Chrysler, Appeal No. 2017-1842 (March 7, 2018) - In Ottah v. Fiat Chrysler, the Federal Circuit affirmed a district court’s grant of summary judgment of non-infringement as to...more

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