Inventor · disambiguated record
Luc Deboer
Also filed as: DEBOER LUC
14 granted patents·2 pending applications·313 citations·filing 2003–2020
93Inventor score
Technology areasE21B
Top patents by PatentIndex Score
16 records- 0188US8844653B2Continuous circulating sub for drill stringsDEBOER LUC·Filed 2011·Granted Sep 30, 2014·14 cites·31 claims
- 0288US6926101B2System and method for treating drilling mud in oil and gas well drilling applicationsFiled 2003·Granted Aug 9, 2005·90 cites·24 claims
- 0382US7090036B2System for drilling oil and gas wells by varying the density of drilling fluids to achieve near-balanced, underbalanced, or overbalanced drilling conditionsDEBOER LUC·Filed 2003·Granted Aug 15, 2006·66 cites·6 claims
- 0481US8534369B2Drill string flow control valve and methods of useDEBOER LUC·Filed 2011·Granted Sep 17, 2013·8 cites·45 claims
- 0580US7093662B2System for drilling oil and gas wells using a concentric drill string to deliver a dual density mudDEBOER LUC·Filed 2003·Granted Aug 22, 2006·62 cites·30 claims
- 0677US7584801B2Drill string flow control valves and methodsDUAL GRADIENT SYSTEMS LLC·Filed 2007·Granted Sep 8, 2009·19 cites·21 claims
- 0774US7992654B2Dual gradient drilling method and apparatus with an adjustable centrifugeDUAL GRADIENT SYSTEMS LLC·Filed 2008·Granted Aug 9, 2011·11 cites·28 claims
- 0865US6966392B2Method for varying the density of drilling fluids in deep water oil and gas drilling applicationsDEBOER LUC·Filed 2003·Granted Nov 22, 2005·31 cites·27 claims
- 0963US7762357B2Dual gradient drilling method and apparatus with an adjustable centrifugeDUAL GRADIENT SYSTEMS LLC·Filed 2008·Granted Jul 27, 2010·6 cites·25 claims
- 1060US11441364B2Concentric pipe systems and methodsKRYN PETROLEUM SERVICES LLC·Filed 2020·Granted Sep 13, 2022·0 cites·19 claims
- 1159US7992655B2Dual gradient drilling method and apparatus with multiple concentric drill tubes and blowout preventersDUAL GRADIENT SYSTEMS LLC·Filed 2005·Granted Aug 9, 2011·5 cites·28 claims
- 1257US10745996B2Circulation valveDRLG TOOLS LLC·Filed 2016·Granted Aug 18, 2020·1 cites·20 claims
- 1351US10865607B2Concentric pipe systems and methodsKRYN PETROLEUM SERVICES LLC·Filed 2017·Granted Dec 15, 2020·0 cites·16 claims
- 1450US11585171B2Managed pressure drilling systems and methodsKRYN PETROLEUM SERVICES LLC·Filed 2019·Granted Feb 21, 2023·0 cites·22 claims
- 1538US2017058632A1Riserless well systems and methodsDEBOER LUC·Filed 2016·Application pending·0 cites
- 1634US2004084213A1System for drilling oil and gas wells using oversized drill string to achieve increased annular return velocitiesFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →