Avista Resources, Inc.

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Oil re-refining method and apparatus
- Patent number RE38366
- Issue date Dec 30, 2003
- Avista Resources, Inc.
- Kalevi John Kenton
- 208 - Mineral oils: processes and products
Information Patent Grant
Method of removing contaminants from petroleum distillates
- Patent number 6,372,122
- Issue date Apr 16, 2002
- Avista Resources, Inc.
- William A. Gorman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

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