Inventor · disambiguated record
Gregson William Martin Spring
Also filed as: SPRING GREGSON W M · SPRING GREGSON WILLIAM MARTIN
4 granted patents·66 citations·filing 1992–2003
78Inventor score
Top patents by PatentIndex Score
4 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
- 0355US5230035AMotor speed controllerSPRING GREGSON W M·Filed 1992·Granted Jul 20, 1993·22 cites·11 claims
- 0437US7378985B2Communication system for down hole useSPRING GREGSON WILLIAM MARTIN·Filed 2003·Granted May 27, 2008·5 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →