Inventor · disambiguated record
David L. Nevels
Also filed as: NEVELS DAVID L
4 granted patents·59 citations·filing 1985–2012
76Inventor score
Technology areasE21B
Top patents by PatentIndex Score
4 records- 0173US9074437B2Actuation and release tool for subterranean toolsSTINGERIE JASON C·Filed 2012·Granted Jul 7, 2015·7 cites·19 claims
- 0265US8517114B2Mechanical lock with pressure balanced floating pistonNEVELS DAVID L·Filed 2010·Granted Aug 27, 2013·4 cites·20 claims
- 0356US4842069AApparatus and method for cementing a liner in a well boreBAKER HUGHES INC·Filed 1988·Granted Jun 27, 1989·28 cites·10 claims
- 0447US4598774ASetting tool with retractable torque fingersHUGHES TOOL CO·Filed 1985·Granted Jul 8, 1986·20 cites·9 claims
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