Assignee
TERRY WILLIAM A
2 granted patents·25 citations·filing 1977–2008
Top patents by PatentIndex Score
2 records- 0154US4125164AApparatus and method for lifting a bop from a wellheadTERRY WILLIAM A·Filed 1977·Granted Nov 14, 1978·24 cites·4 claims
- 0233US8128067B2Device and method providing redundant automatic clutch release and engine shut down on a drilling or production rigTERRY WILLIAM A·Filed 2008·Granted Mar 6, 2012·1 cites·19 claims
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