Phil Holbrook

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for determining sedimentary rock pore pressure caused by eff...
- Patent number 5,965,810
- Issue date Oct 12, 1999
- Baroid Technology, Inc.
- Philip W. Holbrook
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for determining sedimentary rock pore pressure caused by eff...
- Patent number 5,859,367
- Issue date Jan 12, 1999
- Baroid Technology, Inc.
- Philip W. Holbrook
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for controlling drill bit usage and well plan
- Patent number 5,305,836
- Issue date Apr 26, 1994
- Baroid Technology, Inc.
- Philip Holbrook
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for calculating sedimentary rock pore pressure
- Patent number 5,282,384
- Issue date Feb 1, 1994
- Baroid Technology, Inc.
- Phil Holbrook
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for determining pore pressure and horizontal effective stres...
- Patent number 4,981,037
- Issue date Jan 1, 1991
- Baroid Technology, Inc.
- Phil Holbrook
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and system for monitoring the stability of boreholes
- Patent number 4,710,906
- Issue date Dec 1, 1987
- NL Industries, Inc.
- William B. Bradley
- E21 - EARTH DRILLING MINING