IP Verse

Choi competitive analysis

Explore patent oppositions filed by Choi against competitors, revealing strategic technology disputes and market positioning.

Last updated on: Sep 3, 2026

Patent Number	Title	Applicant	Opposition Date
EP2542409	Non-Pvc Film And Non-Pvc Film Laminate	AVERY DENNISON	Sep 18, 2019
EP2586609	A Microporous Material And Method Of Making Same	DARAMIC	Sep 18, 2019
EP1824671	A Microporous Material And A Method Of Making Same	DARAMIC	Aug 14, 2015

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

Last updated on: Sep 8, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
Get alerts for PTAB Cases involving Choi
IPR2020-00222	Dec 9, 2019	3SHAPE A/S	CHOI	Institution Denied
IPR2019-00897	Mar 29, 2019	CHOIROCK CONTENTS FACTORY	SPIN MASTER	Final Written Decision
IPR2019-00900	Mar 29, 2019	CHOIROCK CONTENTS FACTORY	SPIN MASTER	Final Written Decision
IPR2019-00901	Mar 29, 2019	CHOIROCK CONTENTS FACTORY	SPIN MASTER	Final Written Decision
IPR2017-00030	Oct 7, 2016	CHOIROCK CONTENTS FACTORY	SAUCIER	Final Written Decision

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

Last updated on: Sep 3, 2026

Company	Oppositions Filed	Oppositions Faced	PTAB Cases Filed	PTAB Cases Faced
ENDOCHOICE INNOVATION CENTER	-	1	-	-
KARL STORZ	14	8	-	-