SNF SA v. Chevron USA Inc

Robert F. Altherr, Jr.

John P. Iwanicki

Christopher B. Roth

Naveen Modi

Daniel Zeilberger

Michael Wolfe

Prosecution History analysis

Examiner Search analysis

Invalidity Framework analysis

Chevron's oil recovery patent challenged: all 25 claims argued obvious over Li & Pich, with filter ratio cited as inherent from standard test methods.

Chevron USA Inc

SNF SA

SPCM SA

Last Docket Entry Date

Total Docket Entries

IPR2022-01534 | SNF SA v. Chevron USA Inc | Ex Parte

Patent Trial and Appeal Board

Judge	Cases	Inst. Rate	FWD Inv. Rate
Amee A Shah	20+	68%	50%
Barry L Grossman	500+	63%	77%
Barry L Grossman	500+	63%	77%
Eric C Jeschke	200+	62%	84%
Jeremy M Plenzler	300+	63%	80%

Name	Ratings
SNF SA	L1 D
SPCM SA	L1 D

Name	Ratings
Banner & Witcoff LTD	L4 A
Christopher B. Roth	L2 B
Robert F. Altherr, Jr.	L2 C
John P. Iwanicki	L1 C

Name	Ratings
Paul Hastings LLP	L5 A
Naveen Modi	L5 A
Daniel Zeilberger	L1 C
Michael Wolfe	-- -- --