IP Verse

Kaczmarczyk competitive analysis

Discover the latest PTAB cases involving Kaczmarczyk, 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 Kaczmarczyk
IPR2019-00395	Dec 5, 2018	METASWITCH NETWORKS	KACZMARCZYK	Terminated-Settled
IPR2019-00396	Dec 5, 2018	METASWITCH NETWORKS	KACZMARCZYK	Terminated-Settled
IPR2019-00051	Oct 17, 2018	METASWITCH NETWORKS	KACZMARCZYK	Terminated-Settled
IPR2019-00052	Oct 17, 2018	METASWITCH NETWORKS	KACZMARCZYK	Terminated-Settled

IP litigation analysis comparing Kaczmarczyk 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
KACZMARCZYK	-	-	-	4
METASWITCH NETWORKS	-	-	9	4