Inventor
GETZLAF DONALD
CA20 patents
⚠️ This page may combine multiple inventors who share the name “GETZLAF DONALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NCS MULTISTAGE INC
7 patentsUS10465445B2Nov 5, 2019
Casing float tool
NCS MULTISTAGE INC18 citations93
US10883314B2Jan 5, 2021
Casing float tool
NCS MULTISTAGE INC5 citations82
US10883315B2Jan 5, 2021
Casing float tool
NCS MULTISTAGE INC5 citations82
US11180958B2Nov 23, 2021
Casing float tool
NCS MULTISTAGE INC3 citations71
US10344561B2Jul 9, 2019
Tools and methods for use in completion of a wellbore
NCS MULTISTAGE INC2 citations71
US11697968B2Jul 11, 2023
Casing float tool
NCS MULTISTAGE INC0 citations61
US10487626B2Nov 26, 2019
Fracturing valve and fracturing tool string
NCS MULTISTAGE INC1 citations58
NCS OILFIELD SERVICES CANADA INC
6 patentsUS9593542B2Mar 14, 2017
Casing float tool
NCS OILFIELD SERVICES CANADA INC54 citations95
US9745826B2Aug 29, 2017
Tools and methods for use in completion of a wellbore
NCS OILFIELD SERVICES CANADA INC8 citations82
US9334714B2May 10, 2016
Downhole assembly with debris relief, and method for using same
NCS OILFIELD SERVICES CANADA INC14 citations82
US9903182B2Feb 27, 2018
Fracturing valve and fracturing tool string
NCS OILFIELD SERVICES CANADA INC6 citations79
US9140098B2Sep 22, 2015
Downhole isolation and depressurization tool
NCS OILFIELD SERVICES CANADA INC2 citations61
US9303486B2Apr 5, 2016
Tool assembly including an equalization valve
NCS OILFIELD SERVICES CANADA INC0 citations41
GETZLAF DONALD
4 patentsUS9234412B2Jan 12, 2016
Tools and methods for use in completion of a wellbore
GETZLAF DONALD14 citations90
US8794331B2Aug 5, 2014
Tools and methods for use in completion of a wellbore
GETZLAF DONALD20 citations90
US8931559B2Jan 13, 2015
Downhole isolation and depressurization tool
GETZLAF DONALD5 citations71
US8163679B2Apr 24, 2012
Method for applying remedial cement to a wellbore
GETZLAF DONALD1 citations51