Inventor · disambiguated record
Fredrick D. Curtis
Also filed as: CURTIS FREDRICK D
8 granted patents·1 pending application·156 citations·filing 2002–2015
88Inventor score
Technology areasE21B
Files withHALLIBURTON ENERGY SERV INC3CURTIS FREDRICK D2GODFREY CRAIG W1HALLIBURTON ENERGY SERVICES INC1LEWIS DERRICK W1
Top patents by PatentIndex Score
9 records- 0189US7597151B2Hydraulically operated formation isolation valve for underbalanced drilling applicationsHALLIBURTON ENERGY SERV INC·Filed 2005·Granted Oct 6, 2009·42 cites·15 claims
- 0283US9260934B2Remote operation of a rotating control device bearing clampGODFREY CRAIG W·Filed 2011·Granted Feb 16, 2016·11 cites·21 claims
- 0382US9169700B2Pressure control device with remote orientation relative to a rigCURTIS FREDRICK D·Filed 2011·Granted Oct 27, 2015·12 cites·32 claims
- 0476US6644110B1Measurements of properties and transmission of measurements in subterranean wellsHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Nov 11, 2003·50 cites·43 claims
- 0573US8739863B2Remote operation of a rotating control device bearing clampLINDE LEONARD CHARLES·Filed 2011·Granted Jun 3, 2014·8 cites·22 claims
- 0667US9279298B2Well control systems and methodsLEWIS DERRICK W·Filed 2010·Granted Mar 8, 2016·5 cites·48 claims
- 0764US6962215B2Underbalanced well completionHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Nov 8, 2005·28 cites·40 claims
- 0845US2016002996A1Pressure Control Device with Remote Orientation Relative to a RigHALLIBURTON ENERGY SERVICES INC·Filed 2015·Application pending·0 cites
- 0939US9488025B2Rotating control device with positive drive gripping deviceCURTIS FREDRICK D·Filed 2012·Granted Nov 8, 2016·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →