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Inventor

ANDERSON JR WILLIAM L

US5 patents
⚠️ This page may combine multiple inventors who share the name “ANDERSON JR WILLIAM L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ANDERSON GREENWOOD & CO

3 patents
US4602657AJul 29, 1986

Valve manifold for a differential pressure transmitter

ANDERSON GREENWOOD & CO63 citations91
US4821772AApr 18, 1989

Dual active selector valve

ANDERSON GREENWOOD & CO35 citations90
US4609008ASep 2, 1986

Non-flowing pressure responsive pilot valve

ANDERSON GREENWOOD & CO36 citations87

STEWART & STEVENSON SERV INC

2 patents
US5188174AFeb 23, 1993

Apparatus for inserting and withdrawing coil tubing into a well

STEWART & STEVENSON SERV INC89 citations93
US5322410AJun 21, 1994

Tube bundle extractor

STEWART & STEVENSON SERV INC16 citations66