IP Verse

Cheng competitive analysis

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

Last updated on: Jul 16, 2026

Patent Number	Title	Applicant	Opposition Date
EP3709026	Instrument For Analyzing Biological Samples And Reagents	DOUGLAS SCIENTIFIC	Apr 17, 2025
EP3430923	Medical Sock	DECO VISION BVBA	Jul 13, 2021
EP2895021	Upper Body Covering Item	FALKE	Apr 18, 2018
EP2895020	Leg Covering Item	FALKE	Apr 17, 2018

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

Last updated on: Jul 21, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
Get alerts for PTAB Cases involving Cheng
IPR2021-00460	Jan 22, 2021	SAMSUNG ELECTRONICS	CHENG	Terminated-Settled
IPR2021-00402	Jan 7, 2021	CHENGDU KANGHONG BIOTECHNOLOGY	REGENERON PHARMACEUTICALS	Terminated
PGR2021-00035	Jan 7, 2021	CHENGDU KANGHONG BIOTECHNOLOGY	REGENERON PHARMACEUTICALS	Terminated

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

Last updated on: Jul 16, 2026

Company	Oppositions Filed	Oppositions Faced	PTAB Cases Filed	PTAB Cases Faced
GUTEZEICHENGEMEINSCHAFT MEDIZINISCHE KOMPRESSIONSSTRUMPFE EV	3	-	-	-
FALKE	2	4	-	-