Walter A. Butte Jr.

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West Chester, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydrogenation of aliphatic nitriles to primary amines
- Patent number 4,235,821
- Issue date Nov 25, 1980
- Suntech, Inc.
- Walter A. Butte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for hydrogenating aromatic dinitriles
- Patent number 4,222,961
- Issue date Sep 16, 1980
- Suntech, Inc.
- Walter A. Butte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogenation of aromatic nitriles to primary amines
- Patent number 4,186,146
- Issue date Jan 29, 1980
- Suntech, Inc.
- Walter A. Butte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogenation of aromatic amines
- Patent number 4,181,680
- Issue date Jan 1, 1980
- Suntech, Inc.
- Walter A. Butte
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Isomerization of cyclohexanebis(methylamine) stereoisomers
- Patent number 4,086,276
- Issue date Apr 25, 1978
- Suntech, Inc.
- Walter A. Butte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogenation of terephthalnitrile
- Patent number 4,070,399
- Issue date Jan 24, 1978
- Suntech, Inc.
- Walter A. Butte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogenation of phthalonitriles using rhodium catalyst
- Patent number 3,998,881
- Issue date Dec 21, 1976
- Sun Ventures, Inc.
- Walter Albert Butte