IP Verse

Ringcentral competitive analysis

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

Last updated on: Feb 4, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
Get alerts for PTAB Cases involving Ringcentral
IPR2021-00573	Mar 5, 2021	RINGCENTRAL	ESTECH SYSTEMS	Final Written Decision
IPR2021-00574	Mar 5, 2021	RINGCENTRAL	ESTECH SYSTEMS	Final Written Decision

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

Last updated on: Feb 5, 2026

Company	Oppositions Filed	Oppositions Faced	PTAB Cases Filed	PTAB Cases Faced
RINGCENTRAL	-	-	2	-
ESTECH SYSTEMS	-	-	-	6