Assignee
CRAIN JACK A
2 granted patents·1 pending application·53 citations·filing 1980–2005
Top patents by PatentIndex Score
3 records- 0167US6053255ABlowout preventer lift apparatus and methodCRAIN JACK A·Filed 1998·Granted Apr 25, 2000·31 cites·10 claims
- 0251US4347733ABlowout preventor test systemCRAIN JACK A·Filed 1980·Granted Sep 7, 1982·22 cites·9 claims
- 0332US2006260809A1Method and apparatus for replacing drive pipeCRAIN JACK A·Filed 2005·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →