IP Verse

Duan competitive analysis

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

Last updated on: Jul 13, 2026

Proceeding Number	Filing Date	Petitioner	Respondent	Status
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IPR2018-00585	Feb 16, 2018	HUAWEI DEVICE	DUAN	Final Written Decision
IPR2017-02076	Sep 8, 2017	CISCO SYSTEMS	DUAN	Terminated-Settled
IPR2017-02077	Sep 8, 2017	CISCO SYSTEMS	DUAN	Terminated-Settled
IPR2017-00673	Jan 20, 2017	T MOBILE	DUAN	Institution Denied
IPR2017-00698	Jan 20, 2017	T MOBILE	DUAN	Institution Denied