Inventor

WIGAND MARCUS

US3 patents

⚠️ This page may combine multiple inventors who share the name “WIGAND MARCUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHEVRON USA INC

2 patents

US7500517B2Mar 10, 2009

Kerogen extraction from subterranean oil shale resources

CHEVRON USA INC53 citations95

US7789164B2Sep 7, 2010

Kerogen extraction from subterranean oil shale resources

CHEVRON USA INC44 citations94

LOONEY MARK DEAN

1 patent

US8104536B2Jan 31, 2012

Kerogen extraction from subterranean oil shale resources

LOONEY MARK DEAN27 citations87