Inventor · disambiguated record
Steven Hargreaves
Also filed as: HARGREAVES STEVEN
4 granted patents·2 pending applications·18 citations·filing 2009–2013
68Inventor score
Technology areasE21B
Top patents by PatentIndex Score
6 records- 0170US8267448B2Cam arm actuated backup tongDAGENAIS DAN·Filed 2010·Granted Sep 18, 2012·5 cites·15 claims
- 0269US8453541B2Reduced weight power tong for turning pipeDAGENAIS DAN·Filed 2009·Granted Jun 4, 2013·13 cites·17 claims
- 0339US2015075814A1Mechancial roughneck positionerMCCOY CORP·Filed 2013·Application pending·0 cites
- 0437US8479614B2Internally retained jaw roller pinGERWING MURRAY·Filed 2012·Granted Jul 9, 2013·0 cites·27 claims
- 0535US8234957B2Internally retained jaw roller pinGERWING MURRAY·Filed 2010·Granted Aug 7, 2012·0 cites·17 claims
- 0628US2015167409A1Spin wrench assemblyGERWING MURRAY C·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →