IP Verse

Xu competitive analysis

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

Last updated on: Sep 3, 2026

Patent Number	Title	Applicant	Opposition Date
EP2374472	Compositions And Methods For Treating Ophthalmic Disorders	DYAX	Jan 28, 2019
EP2588292	Injection Tool For Producing Components By Injection Moulding	HEFNER	Jun 20, 2018
EP1854477	Compositions And Methods For Treating Ophthalmic Disorders	DYAX	May 3, 2017
EP1971210	Non-Hydrogenated Vegetable Oil Based Margarine For Puff Pastry Containing An Elevated Diglyceride Emulsifier	CARAVAN INGREDIENTS	Aug 4, 2016

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

Last updated on: Sep 7, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
Get alerts for PTAB Cases involving Xu
IPR2024-00156	Nov 8, 2023	XU PEICHENG HONG KONG OPTOELECTRONIC TECHNOLOGY	SEMISILICON TECHNOLOGY	Final Written Decision
IPR2024-00157	Nov 8, 2023	XU PEICHENG HONG KONG OPTOELECTRONIC TECHNOLOGY	SEMISILICON TECHNOLOGY	Institution Denied
IPR2017-00326	Nov 23, 2016	BUBBLETIGHT	XU	Institution Denied

IP litigation analysis comparing Xu 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
SUZHOU PENGXU PHARMATECH	-	5	-	-
D YOUNG	35	-	-	-
FRY HEATH & SPENCE	1	-	-	-
HGF	84	-	-	-