John D. Freilich

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S. Williamsport, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Mono-quaternary ammonium salts of hydantoin and compositions thereof
- Patent number 4,073,926
- Issue date Feb 14, 1978
- Glyco Chemicals, Inc.
- Norman O. V. Sonntag
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Di-quaternary ammonium salts of hydantoin and compositions thereof
- Patent number 4,073,927
- Issue date Feb 14, 1978
- Glyco Chemicals, Inc.
- John D. Freilich
- C07 - ORGANIC CHEMISTRY