Assignee
SPRING GREGSON WILLIAM MARTIN
3 granted patents·44 citations·filing 2002–2003
Top patents by PatentIndex Score
3 records- 0179US7141901B2Downhole torque-generating and generator combination apparatusSPRING GREGSON WILLIAM MARTIN·Filed 2002·Granted Nov 28, 2006·27 cites·41 claims
- 0262US7057316B2Downhole torque generatorSPRING GREGSON WILLIAM MARTIN·Filed 2002·Granted Jun 6, 2006·12 cites·24 claims
- 0337US7378985B2Communication system for down hole useSPRING GREGSON WILLIAM MARTIN·Filed 2003·Granted May 27, 2008·5 cites·18 claims
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