John Forrest

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for inserting and removing a flexible first ma...
- Patent number 6,481,930
- Issue date Nov 19, 2002
- Longbore, Inc.
- John Forrest
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Navigable downhole drilling system
- Patent number 5,269,383
- Issue date Dec 14, 1993
- Drilex Systems, Inc.
- John Forrest
- E21 - EARTH DRILLING MINING
Information Patent Grant
Power generation from a multi-lobed drilling motor
- Patent number 5,248,896
- Issue date Sep 28, 1993
- Drilex Systems, Inc.
- John Forrest
- E21 - EARTH DRILLING MINING
Information Patent Grant
Composite stator construction for downhole drilling motors
- Patent number 5,171,138
- Issue date Dec 15, 1992
- Drilex Systems, Inc.
- John Forrest
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thermal shield for drilling motors
- Patent number 4,926,949
- Issue date May 22, 1990
- Drilex Systems, Inc.
- John Forrest
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for controlled absorption of axial and torsional forces i...
- Patent number 4,901,806
- Issue date Feb 20, 1990
- Drilex Systems, Inc.
- John Forrest
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for inserting and removing a flexible first ma...
- Publication number 20020064428
- Publication date May 30, 2002
- John Forrest
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...