Alfred A. Hoffman Jr.

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Bartlesville, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of removing acetylene and sulfur compounds from gases by abs...
- Patent number 4,177,250
- Issue date Dec 4, 1979
- Phillips Petroleum Company
- Howard B. Irvin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Extraction of hydroperoxides
- Patent number 4,160,000
- Issue date Jul 3, 1979
- Phillips Petroleum Company
- John F. Hutto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acetylenes removal from olefin streams for alkylation by dimethyl f...
- Patent number 4,086,288
- Issue date Apr 25, 1978
- Phillips Petroleum Company
- Howard B. Irvin
- C07 - ORGANIC CHEMISTRY