Arthur G. Shaffer Jr.

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Grayson, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
“Pumped” recycle vapor
- Patent number 6,402,937
- Issue date Jun 11, 2002
- Marathon Ashland Petroleum LLC
- Arthur G. Shaffer
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Vaporization of used motor oil with non-hydrogenating recycle vapor
- Patent number 6,402,938
- Issue date Jun 11, 2002
- Marathon Ashland Petroleum LLC
- Howard F. Moore
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...