William D. Ellerman

Cherry Johnson Siegmund James PLLCLocal

General

Experience10 yrs

Elite Ratings

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Practice Areas

Biotech (3 cases)

Chemical (1 case)

Comp. Arch. and Software (25 cases)

Software, Security (29 cases)

Communications (35 cases)

Law Firms

Cherry Johnson Siegmund James PLLC (Current)

Shore Chan Depumpo LLP

McKool Smith

wellerman@cjsjlaw.com

Ratings

Experience

Grade

Trend

DCT

L1

C

PTAB

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CAFC

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Cases

Case #	Court	Caption	Filed	Represent
7:26-CV-00320	W.D. TX	Skeleton Key Security Systems Inc v. Neutron Holdings Inc	08/17/26	Patent Owner :Skeleton Key Security Systems Inc	.
2:26-CV-00532	E.D. TX	Ensygnia IP Ltd v. Samsung Electronics America Inc	07/01/26	Patent Owner :Ensygnia IP Ltd	.
2:26-CV-00501	E.D. TX	Tau Ceti Ventures LLC v. Samsung Electronics Co Ltd	06/23/26	Patent Owner :Tau Ceti Ventures LLC	.
7:26-CV-00231	W.D. TX	Acoustic Array Tech LLC v. Apple Inc	06/12/26	Patent Owner :Acoustic Array Technologies LLC	.
2:26-CV-00472	E.D. TX	Omni MedSci Inc v. OnePlus Technology Shenzhen Co Ltd	06/12/26	Challenger :OnePlus Technology Shenzhen Co Ltd	.
2:26-CV-00453	E.D. TX	Crude Solutions Ltd v. MEG Energy Corp	06/08/26	Patent Owner :Crude Solutions Ltd	.
2:26-CV-00395	E.D. TX	Intellectual Ventures I LLC v. Unitedhealth Group Inc	05/14/26	Patent Owner :Intellectual Ventures I LLC	.
2:26-CV-00390	E.D. TX	Qosound IP Innovations LLC v. Samsung Electronics Co Ltd	05/11/26	Patent Owner :Qosound IP Innovations LLC	.
2:26-CV-00303	E.D. TX	Many Worlds 2T Innovations LLC v. Spotify Technology SA	04/16/26	Patent Owner :Many Worlds 2T Innovations LLC	.
7:26-CV-00113	W.D. TX	Causam Enterprises Inc v. Jupiter Power LLC	03/27/26	Patent Owner :Causam Enterprises Inc	.

Ratings Trends

Practice Areas