Charles H. Koster

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Alvin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for repairing casings and the like
- Patent number 5,209,600
- Issue date May 11, 1993
- Nu-Bore Systems
- Charles H. Koster
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for repairing casings and the like
- Patent number 5,046,558
- Issue date Sep 10, 1991
- Nu-Bore Systems
- Charles H. Koster
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for repairing well casings and the like
- Patent number 4,971,152
- Issue date Nov 20, 1990
- Nu-Bore Systems
- Charles H. Koster
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Resin applicator device
- Patent number 4,934,312
- Issue date Jun 19, 1990
- Nu-Bore Systems
- Charles H. Koster
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Method and apparatus for repairing casings and the like
- Patent number 4,913,758
- Issue date Apr 3, 1990
- Nu-Bore Systems
- Charles H. Koster
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for repairing casings and the like
- Patent number 4,865,127
- Issue date Sep 12, 1989
- Nu-Bore Systems
- Charles H. Koster
- E21 - EARTH DRILLING MINING