James E. Keesling

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Bartlesville, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Process to produce an article that has a granite-like appearance an...
- Patent number 5,922,257
- Issue date Jul 13, 1999
- Phillips Petroleum Company
- James E. Keesling
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and apparatus for extruding thermoplastic shape
- Patent number 4,452,752
- Issue date Jun 5, 1984
- Phillips Petroleum Company
- Joseph R. Harder
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL