Inventor

WILLIAMS BOLIE C

4 patents

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

ELECTRICAL SUBSEA & DRILLING AS

2 patents

US11156054B2Oct 26, 2021

Annular blowout preventer

ELECTRICAL SUBSEA & DRILLING AS10 citations78

US10519739B2Dec 31, 2019

Ram for a blowout preventer and a blowout preventer provided with rams

ELECTRICAL SUBSEA & DRILLING AS3 citations65

COOPER CAMERON CORP

1 patent

US6719262B2Apr 13, 2004

Bidirectional sealing blowout preventer

COOPER CAMERON CORP38 citations90

CAMERON IRON WORKS INC

1 patent

US3994472ANov 30, 1976

Annular type blowout preventer

CAMERON IRON WORKS INC21 citations78