Inventor · disambiguated record
Donald Getzlaf
Also filed as: GETZLAF DONALD · GETZLAF DONALD A
25 granted patents·11 pending applications·500 citations·filing 2002–2022
97Inventor score
Files withNCS MULTISTAGE INC11NCS OILFIELD SERVICES CANADA INC8HALLIBURTON ENERGY SERV INC5GETZLAF DONALD4NCS MULTISTAGE LLC3
Top patents by PatentIndex Score
36 records- 0198US7285166B2Zeolite-containing cement compositionHALLIBURTON ENERGY SERV INC·Filed 2005·Granted Oct 23, 2007·59 cites·29 claims
- 0297US7147067B2Zeolite-containing drilling fluidsHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Dec 12, 2006·93 cites·43 claims
- 0396US10465445B2Casing float toolNCS MULTISTAGE INC·Filed 2018·Granted Nov 5, 2019·18 cites·57 claims
- 0496US6964302B2Zeolite-containing cement compositionHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Nov 15, 2005·76 cites·79 claims
- 0595US10883315B2Casing float toolNCS MULTISTAGE INC·Filed 2020·Granted Jan 5, 2021·5 cites·18 claims
- 0695US9593542B2Casing float toolNCS OILFIELD SERVICES CANADA INC·Filed 2013·Granted Mar 14, 2017·54 cites·12 claims
- 0794US8794331B2Tools and methods for use in completion of a wellboreGETZLAF DONALD·Filed 2011·Granted Aug 5, 2014·20 cites·11 claims
- 0894US8490702B2Downhole tool assembly with debris relief, and method for using sameSTROMQUIST MARTY·Filed 2010·Granted Jul 23, 2013·29 cites·22 claims
- 0994US8201631B2Multi-functional isolation tool and method of useSTROMQUIST MARTY·Filed 2011·Granted Jun 19, 2012·26 cites·27 claims
- 1093US9234412B2Tools and methods for use in completion of a wellboreGETZLAF DONALD·Filed 2012·Granted Jan 12, 2016·14 cites·1 claims
- 1193US6989057B2Zeolite-containing cement compositionHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Jan 24, 2006·54 cites·45 claims
- 1292US11180958B2Casing float toolNCS MULTISTAGE INC·Filed 2020·Granted Nov 23, 2021·3 cites·7 claims
- 1391US10883314B2Casing float toolNCS MULTISTAGE INC·Filed 2017·Granted Jan 5, 2021·5 cites·7 claims
- 1491US9334714B2Downhole assembly with debris relief, and method for using sameNCS OILFIELD SERVICES CANADA INC·Filed 2013·Granted May 10, 2016·14 cites·20 claims
- 1589US9745826B2Tools and methods for use in completion of a wellboreNCS OILFIELD SERVICES CANADA INC·Filed 2014·Granted Aug 29, 2017·8 cites·18 claims
- 1681US10344561B2Tools and methods for use in completion of a wellboreNCS MULTISTAGE INC·Filed 2015·Granted Jul 9, 2019·2 cites·9 claims
- 1781US10227845B2Tools and methods for use in completion of a wellboreNCS MULTISTAGE LLC·Filed 2015·Granted Mar 12, 2019·2 cites·8 claims
- 1880US9903182B2Fracturing valve and fracturing tool stringNCS OILFIELD SERVICES CANADA INC·Filed 2014·Granted Feb 27, 2018·6 cites·30 claims
- 1976US8931559B2Downhole isolation and depressurization toolGETZLAF DONALD·Filed 2012·Granted Jan 13, 2015·5 cites·14 claims
- 2074US11697968B2Casing float toolNCS MULTISTAGE INC·Filed 2022·Granted Jul 11, 2023·0 cites·43 claims
- 2168US10487626B2Fracturing valve and fracturing tool stringNCS MULTISTAGE INC·Filed 2018·Granted Nov 26, 2019·1 cites·31 claims
- 2268US2021115735A1Casing float toolNCS MULTISTAGE INC·Filed 2020·Application pending·0 cites
- 2365US9140098B2Downhole isolation and depressurization toolNCS OILFIELD SERVICES CANADA INC·Filed 2014·Granted Sep 22, 2015·2 cites·6 claims
- 2465US8163679B2Method for applying remedial cement to a wellboreGETZLAF DONALD·Filed 2009·Granted Apr 24, 2012·1 cites·16 claims
- 2563US2019353006A1Tools and methods for use in completion of a wellboreNCS MULTISTAGE INC·Filed 2019·Application pending·0 cites
- 2663US2019316441A1Tools and methods for use in completion of a wellboreNCS MULTISTAGE INC·Filed 2019·Application pending·0 cites
- 2763US2019360301A1Casing float toolNCS MULTISTAGE INC·Filed 2019·Application pending·0 cites
- 2858US7059409B2Methods of cementing and cement compositions containing a polymeric cement cohesion additiveHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Jun 13, 2006·3 cites·18 claims
- 2958US2017314364A1Tools and methods for use in completion of a wellboreNCS MULTISTAGE LLC·Filed 2017·Application pending·0 cites
- 3056US2016298423A1Tools and methods for use in completion of a wellboreNCS MULTISTAGE LLC·Filed 2016·Application pending·0 cites
- 3150US2015013982A1Fracturing valveNCS OILFIELD SERVICES CANADA INC·Filed 2014·Application pending·0 cites
- 3250US2006185561A1Methods of cementing in subterranean zones and cementing compositions thereforFYTEN GLEN C·Filed 2006·Application pending·0 cites
- 3343US2014360721A1Cement composition with fly ashCEMBLEND SYSTEMS INC·Filed 2014·Application pending·0 cites
- 3442US9303486B2Tool assembly including an equalization valveNCS OILFIELD SERVICES CANADA INC·Filed 2012·Granted Apr 5, 2016·0 cites·24 claims
- 3541US2013180721A1Downhole Fluid Treatment ToolNCS OILFIELD SERVICES CANADA INC·Filed 2012·Application pending·0 cites
- 3635US2007032388A1Zeolite-containing drilling fluidsGETZLAF DONALD A·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →