News & Analysis as of

Prosecution History Estoppel Prior Art

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Statements Made During Prosecution of Parent Application Disavow Claim Scope in Subsequent Patents

The Federal Circuit affirmed a District of Delaware finding of non-infringement in an ANDA litigation due to the patentee’s clear and unmistakable disavowal of claim scope during prosecution. Specifically, the court held that...more

McDonnell Boehnen Hulbert & Berghoff LLP

Sherwin-Williams Co. v. PPG Industries, Inc. (W.D. Pa. 2020)

Earlier this month, in Sherwin-Williams Co. v. PPG Industries, Inc., Special Master Henry M. Sneath issued a Report and Recommendation in the U.S. District Court for the Western District of Pennsylvania that a motion by...more

Goodwin

ITC 337 Quarterly Insider Q2 2020

Goodwin on

Goodwin’s 337 Quarterly Insider remains the premiere publicly available source for keeping up to date on all meaningful decisions coming out of the Commission. Please find below Goodwin’s insights on the months of April, May,...more

McDermott Will & Emery

“Tangential Relation” Exception Saves Patentee’s Reliance on DOE

McDermott Will & Emery on

Addressing an infringement determination under the doctrine of equivalents (DOE), the US Court of Appeals for the Federal Circuit found that the “tangential relation” exception to the doctrine of prosecution history estoppel...more

Jones Day

Verbal Aspect of Claim Limits Design Patent Scope in Curver Luxembourg v. Home Expressions

Jones Day on

The Federal Circuit affirmed dismissal of design patent infringement claims under an estoppel theory triggered by amendments made to meet patentability requirements in Curver Luxembourg, SARL v. Home Expressions Inc., No....more

McDermott Will & Emery

Doctrine of Equivalents – It’s Over Before It Begins

The US Court of Appeals for the Federal Circuit affirmed a dismissal based on the defendant’s failure to state a claim motion, concluding that under principles of prosecution history estoppel, the patent owner could not...more

Mintz - Intellectual Property Viewpoints

Effect of Prosecution History Estoppel on Infringement Claim under Doctrine of Equivalents

The Federal Circuit in Amgen Inc. v. Coherus Biosciences Inc. affirmed a district court decision that once certain subject matter is clearly and unmistakably surrendered during prosecution, the patentee is barred from...more

Knobbe Martens

Federal Circuit Review - June 2019

Knobbe Martens on

One-year Clock for Filing IPR Petition Applies to Litigants and Parties that Become Privies of the Litigant Prior to Institution. In Power Integrations, Inc v. Semiconductor Components, Appeal No. 2018-1607, the Federal...more

Jones Day

PTAB Designates Two Decisions Declining Review Under § 325(d) as Informative

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On March 21, 2018 the PTAB issued a press release announcing that two decisions denying review under 35 U.S.C. § 325(d) are designated as informative: Kayak Software Corp.v. International Business Machines Corp.,...more

Akin Gump Strauss Hauer & Feld LLP

Delaware Court Recommends Dismissal with Prejudice of Biosimilar Neulasta Suit

In a Report and Recommendation issued December 7, 2017, Magistrate Judge Burke in the District of Delaware recommended that Amgen’s BPCIA complaint for infringement against Coherus Biosciences Inc. be dismissed with prejudice...more

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