Keith J. Christopher

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for mounting shaft seals permitting eccentric motion
- Patent number 10,989,302
- Issue date Apr 27, 2021
- CATHEDRAL ENERGY SERVICES LTD.
- Keith J. Christopher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Device for isolating a tool from axial vibration while maintaining...
- Patent number 10,683,710
- Issue date Jun 16, 2020
- CATHEDRAL ENERGY SERVICES LTD.
- Keith J. Christopher
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and device for mounting shaft seals permitting eccentric motion
- Patent number 10,378,650
- Issue date Aug 13, 2019
- CATHEDRAL ENERGY SERVICES LTD.
- Keith J. Christopher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR MOUNTING SHAFT SEALS PERMITTING ECCENTRIC MOTION
- Publication number 20190309848
- Publication date Oct 10, 2019
- Cathedral Energy Services Ltd.
- Keith J. Christopher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
METHOD AND DEVICE FOR MOUNTING SHAFT SEALS PERMITTING ECCENTRIC MOTION
- Publication number 20190032781
- Publication date Jan 31, 2019
- Cathedral Energy Services Ltd.
- Keith J. Christopher
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
DEVICE FOR ISOLATING A TOOL FROM AXIAL VIBRATION WHILE MAINTAINING...
- Publication number 20180100357
- Publication date Apr 12, 2018
- Cathedral Energy Services Ltd.
- Keith J. Christopher
- E21 - EARTH DRILLING MINING