Assignee
BUCK DAVID A
US·15 granted patents·3 pending applications·373 citations·filing 1984–2018
Top patents by PatentIndex Score
18 records- 0194US4709599ACompensating jaw assembly for power tongsBUCK DAVID A·Filed 1985·Granted Dec 1, 1987·122 cites·4 claims
- 0285US4576067AJaw assemblyBUCK DAVID A·Filed 1984·Granted Mar 18, 1986·61 cites·5 claims
- 0380US9488033B2Valve with stop mechanismBUCK DAVID A·Filed 2014·Granted Nov 8, 2016·4 cites·18 claims
- 0479US9551425B2Valve with stop mechanismBUCK DAVID A·Filed 2014·Granted Jan 24, 2017·4 cites·15 claims
- 0578US11137077B2Low friction valve stemBUCK DAVID A·Filed 2018·Granted Oct 5, 2021·2 cites·13 claims
- 0671US8215196B2Tong gear shift systemBUCK DAVID A·Filed 2008·Granted Jul 10, 2012·5 cites·21 claims
- 0769US8998173B2Valve apparatus and methodBUCK DAVID A·Filed 2013·Granted Apr 7, 2015·2 cites·13 claims
- 0867US5222718AFlanged washer springBUCK DAVID A·Filed 1991·Granted Jun 29, 1993·26 cites·5 claims
- 0964US5291808ARing gear camming memberBUCK DAVID A·Filed 1992·Granted Mar 8, 1994·34 cites·8 claims
- 1062US4631987APower tongsBUCK DAVID A·Filed 1985·Granted Dec 30, 1986·32 cites·9 claims
- 1154US4700787APower tong torque controlBUCK DAVID A·Filed 1985·Granted Oct 20, 1987·24 cites·5 claims
- 1250US4986146ACamming member for power tongsBUCK DAVID A·Filed 1990·Granted Jan 22, 1991·22 cites·8 claims
- 1349US7204173B2Rotatable die tong jawBUCK DAVID A·Filed 2004·Granted Apr 17, 2007·10 cites·18 claims
- 1447US2014306139A1Valve Apparatus and MethodBUCK DAVID A·Filed 2013·Application pending·0 cites
- 1544US4688649AMechanical drill string jarBUCK DAVID A·Filed 1985·Granted Aug 25, 1987·16 cites·3 claims
- 1640US2010050407A1Method of Repairing Tong JawBUCK DAVID A·Filed 2008·Application pending·0 cites
- 1738US2015233478A1Valve With Stop MechanismBUCK DAVID A·Filed 2015·Application pending·0 cites
- 1837US4889198ADrilling jar latchBUCK DAVID A·Filed 1988·Granted Dec 26, 1989·9 cites·3 claims
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