Samuel N. Holter

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rust preventives
- Patent number 4,592,783
- Issue date Jun 3, 1986
- Koppers Company, Inc.
- Hans Dressler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering a crystallization medium
- Patent number 4,433,181
- Issue date Feb 21, 1984
- Koppers Company, Inc.
- Samuel N. Holter
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing mono-substituted alkylresorcinol isomers
- Patent number 4,086,281
- Issue date Apr 25, 1978
- Koppers Company, Inc.
- Samuel N. Holter
- C07 - ORGANIC CHEMISTRY