Inventor · disambiguated record
Herman M. Kamphorst
Also filed as: KAMPHORST HERMAN · KAMPHORST HERMAN M
8 granted patents·1 pending application·371 citations·filing 1997–2010
90Inventor score
Technology areasE21B
Files withVARCO INT9
Top patents by PatentIndex Score
9 records- 0194US7096977B2Pipe running toolVARCO INT·Filed 2005·Granted Aug 29, 2006·66 cites·19 claims
- 0293US7591304B2Pipe running tool having wireless telemetryVARCO INT·Filed 2005·Granted Sep 22, 2009·62 cites·13 claims
- 0392US7699121B2Pipe running tool having a primary load pathVARCO INT·Filed 2005·Granted Apr 20, 2010·41 cites·15 claims
- 0484US6527493B1Handling of tube sections in a rig for subsoil drillingVARCO INT·Filed 1997·Granted Mar 4, 2003·132 cites·15 claims
- 0580US6938709B2Pipe running toolVARCO INT·Filed 2002·Granted Sep 6, 2005·48 cites·15 claims
- 0673US7510006B2Pipe running tool having a cement pathVARCO INT·Filed 2005·Granted Mar 31, 2009·14 cites·20 claims
- 0771US8037949B2Pipe running toolVARCO INT·Filed 2010·Granted Oct 18, 2011·3 cites·23 claims
- 0856US7753138B2Pipe running tool having internal gripperVARCO INT·Filed 2005·Granted Jul 13, 2010·5 cites·16 claims
- 0945US2010155140A1Pipe running tool having a primary load pathVARCO INT·Filed 2010·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →