Inventor

CHURCH JR RICHARD M

US3 patents

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

CAMERON IRON WORKS INC

2 patents

US4310139AJan 12, 1982

Annular blowout preventer

CAMERON IRON WORKS INC32 citations89

US4460151AJul 17, 1984

Annular blowout preventer

CAMERON IRON WORKS INC21 citations79

ABSOLUTE CONTROL LLC

1 patent

US10961816B1Mar 30, 2021

Oilwell choke

ABSOLUTE CONTROL LLC4 citations65