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Kaken Pharmaceutical competitive analysis

Discover the latest PTAB cases involving Kaken Pharmaceutical, highlighting their recent legal challenges and patent disputes.

Last updated on: Feb 1, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
Get alerts for PTAB Cases involving Kaken Pharmaceutical
IPR2017-01429	May 12, 2017	ARGENTUM PHARMACEUTICALS	KAKEN PHARMACEUTICAL	Terminated-Settled
IPR2017-00190	Nov 2, 2016	ACRUX DDS	KAKEN PHARMACEUTICAL	Final Written Decision

IP litigation analysis comparing Kaken Pharmaceutical with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Jan 29, 2026

Company	Oppositions Filed	Oppositions Faced	PTAB Cases Filed	PTAB Cases Faced
KAKEN PHARMACEUTICAL	-	-	-	2
ACRUX DDS	-	-	1	-
ARGENTUM PHARMACEUTICALS	-	-	12	-