Walter F. Hoffstadt

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Vestal, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Nitrophenyl imino propionates
- Patent number 4,138,571
- Issue date Feb 6, 1979
- GAF Corporation
- David J. Tracy
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amidine compounds
- Patent number 4,129,739
- Issue date Dec 12, 1978
- GAF Corporation
- David J. Tracy
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 3-anilino-5-pyrazolones
- Patent number 4,113,954
- Issue date Sep 12, 1978
- GAF Corporation
- David J. Tracy
- C07 - ORGANIC CHEMISTRY