Inventor · disambiguated record
Larry G. Keast
Also filed as: KEAST LARRY G
38 granted patents·3 pending applications·489 citations·filing 1979–2025
97Inventor score
Top patents by PatentIndex Score
41 records- 0197US7984757B1Drilling rig with a top drive with an air lift thread compensator and a hollow cylinder rod providing minimum flexing of conduitKEAST LARRY G·Filed 2010·Granted Jul 26, 2011·65 cites·18 claims
- 0295US9303469B1Top drive with dual opening elevatorKEAST LARRY G·Filed 2015·Granted Apr 5, 2016·13 cites·16 claims
- 0395US9249655B1Control system for a top driveKEAST LARRY G·Filed 2012·Granted Feb 2, 2016·47 cites·19 claims
- 0495US8387720B1Drilling rig with a control system for rotationally rocking a drill string with a top driveKEAST LARRY G·Filed 2012·Granted Mar 5, 2013·48 cites·20 claims
- 0594US4246809APower tong apparatus for making and breaking connections between lengths of small diameter tubingWORLD WIDE OIL TOOLS INC·Filed 1979·Granted Jan 27, 1981·70 cites·2 claims
- 0693US8127836B1Top drive with an airlift thread compensator and a hollow cylinder rod providing minimum flexing of conduitKEAST LARRY G·Filed 2011·Granted Mar 6, 2012·22 cites·19 claims
- 0792US11905770B2Latch assembly for torque managementKEAST LARRY G·Filed 2022·Granted Feb 20, 2024·2 cites·18 claims
- 0892US11634952B2Reeving system for supporting a loadKEAST LARRY G·Filed 2022·Granted Apr 25, 2023·2 cites·19 claims
- 0992US8443877B1Drilling rig with top drive and inside blowout preventerKEAST LARRY G·Filed 2012·Granted May 21, 2013·17 cites·7 claims
- 1089US8807208B1Method for using a power swivel with tiltKEAST LARRY G·Filed 2014·Granted Aug 19, 2014·12 cites·14 claims
- 1189US8727039B1Torque measuring top driveKEAST LARRY G·Filed 2011·Granted May 20, 2014·13 cites·20 claims
- 1288US10851601B2Combination tubular handler and power swivel unitKEAST LARRY G·Filed 2019·Granted Dec 1, 2020·4 cites·18 claims
- 1388US9915108B1Dual control hydraulic circuit for a tilting power swivelKEAST LARRY G·Filed 2016·Granted Mar 13, 2018·6 cites·6 claims
- 1488US7921939B1Method for using a top drive with an air lift thread compensator and a hollow cylinder rod providing minimum flexing of conduitKEAST LARRY G·Filed 2010·Granted Apr 12, 2011·14 cites·20 claims
- 1587US11208854B2Combination tubular handler and power swivel unitKEAST LARRY G·Filed 2020·Granted Dec 28, 2021·2 cites·16 claims
- 1686US11639080B2Vehicle suspension kit having multi-purpose shock absorber and relatedKEAST LARRY G·Filed 2021·Granted May 2, 2023·2 cites·17 claims
- 1786US8443876B1Top drive with inside blowout preventerKEAST LARRY G·Filed 2012·Granted May 21, 2013·10 cites·4 claims
- 1886US8181721B1Torque track and slide assemblyKEAST LARRY G·Filed 2011·Granted May 22, 2012·11 cites·11 claims
- 1985US6832658B2Top drive systemFiled 2002·Granted Dec 21, 2004·75 cites·20 claims
- 2079US10156095B1Top drive and power swivel with high pressure seals and automatic refilling lubrication reservoirKEAST LARRY G·Filed 2017·Granted Dec 18, 2018·5 cites·8 claims
- 2178US8631882B1Drilling rig with torque measuring top driveKEAST LARRY G·Filed 2012·Granted Jan 21, 2014·6 cites·11 claims
- 2277US9303470B1Drilling rig with top drive with dual opening elevatorKEAST LARRY G·Filed 2015·Granted Apr 5, 2016·3 cites·17 claims
- 2374US12326048B2Latch assembly for torque managementKEAST LARRY G·Filed 2023·Granted Jun 10, 2025·0 cites·18 claims
- 2474US10480265B1Combination hydraulic catwalk and power swivelKEAST LARRY G·Filed 2017·Granted Nov 19, 2019·2 cites·5 claims
- 2572US11927061B2Reeving system for supporting a loadKEAST LARRY G·Filed 2023·Granted Mar 12, 2024·0 cites·19 claims
- 2672US8590610B1Top drive with integral traveling block and airlift thread compensatorKEAST LARRY G·Filed 2013·Granted Nov 26, 2013·4 cites·5 claims
- 2772US2023220736A1Combination tubular handler and power swivel unitKEAST LARRY G·Filed 2023·Application pending·0 cites
- 2870USD946480SControl panel for a vehicleKEAST LARRY G·Filed 2020·Granted Mar 22, 2022·4 cites·1 claims
- 2969US11639638B2Combination tubular handler and power swivel unitKEAST LARRY G·Filed 2021·Granted May 2, 2023·0 cites·18 claims
- 3069US8807207B1Power swivel with tilt systemKEAST LARRY G·Filed 2014·Granted Aug 19, 2014·3 cites·13 claims
- 3168US11890910B2Vehicle suspension kit having multi-purpose shock absorber and relatedKEAST LARRY G·Filed 2023·Granted Feb 6, 2024·0 cites·17 claims
- 3268US8544537B1Drilling rig with a top drive with integral traveling block and airlift thread compensatorKEAST LARRY G·Filed 2013·Granted Oct 1, 2013·3 cites·5 claims
- 3366US12115472B2Bi-directional spring filterKEAST LARRY G·Filed 2023·Granted Oct 15, 2024·0 cites·17 claims
- 3464US7788920B2Hydraulic pump with control systemKEAST LARRY G·Filed 2007·Granted Sep 7, 2010·4 cites·14 claims
- 3562US2025297521A1Latch Assembly for Torque ManagementKEAST LARRY G·Filed 2025·Application pending·0 cites
- 3657US6659127B2Relief valveFiled 2001·Granted Dec 9, 2003·7 cites·4 claims
- 3756US8636056B1Drilling rig with torque track slide assemblyKEAST LARRY G·Filed 2012·Granted Jan 28, 2014·1 cites·9 claims
- 3854US4254655AHydraulic fill valveWORLD WIDE OIL TOOLS INC·Filed 1979·Granted Mar 10, 1981·12 cites·8 claims
- 3951US11549960B2System and method for monitoring one or more parameters of a top drive with a single sensorKEAST LARRY G·Filed 2020·Granted Jan 10, 2023·0 cites·18 claims
- 4048US2023145409A1Telescoping torque reaction track deviceKEAST LARRY G·Filed 2022·Application pending·0 cites
- 4128US4296842APawl and ratchet mechanismWORLD WIDE OIL TOOLS INC·Filed 1979·Granted Oct 27, 1981·0 cites·12 claims
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