Inventor · disambiguated record
Thad D. Andrews
Also filed as: ANDREWS THAD · ANDREWS THAD D
2 granted patents·1 pending application·31 citations·filing 2008–2009
60Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0181US7967074B2Electric wireline insert safety valveBAKER HUGHES INC·Filed 2008·Granted Jun 28, 2011·26 cites·19 claims
- 0253US8113286B2Downhole barrier valveBEALL CLIFFORD H·Filed 2008·Granted Feb 14, 2012·5 cites·15 claims
- 0337US2010300702A1Wellbore Shut Off Valve with Hydraulic Actuator SystemBAKER HUGHES INC·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →