Jerry Cerkovnik

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Highlands Ranch, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole depth computation methods and related system
- Patent number 8,122,954
- Issue date Feb 28, 2012
- Baker Hughes Incorporated
- Robert Estes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Anti-whirl drill bit
- Patent number 5,979,576
- Issue date Nov 9, 1999
- Baker Hughes Incorporated
- Wayne R. Hansen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Anti-whirl drill bit
- Patent number 5,873,422
- Issue date Feb 23, 1999
- Baker Hughes Incorporated
- Wayne R. Hansen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Self-renewing multi-element cutting structure for rotary drag bit
- Patent number 5,025,873
- Issue date Jun 25, 1991
- Baker Hughes Incorporated
- Jerry Cerkovnik
- E21 - EARTH DRILLING MINING
Information Patent Grant
Nozzle placement in a diamond rotating bit including a pilot bit
- Patent number 4,515,227
- Issue date May 7, 1985
- Christensen, Inc.
- Jerry Cerkovnik
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Downhole Depth Computation Methods and Related System
- Publication number 20080105423
- Publication date May 8, 2008
- BAKER HUGHES INCORPORATED
- Robert Estes
- E21 - EARTH DRILLING MINING