Robert W. Koch

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Norristown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Activator-accelerator mixtures for alkaline paint stripper composit...
- Patent number 4,737,195
- Issue date Apr 12, 1988
- Amchem Products
- Carmen M. Carandang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cold paint stripping composition
- Patent number 4,518,518
- Issue date May 21, 1985
- Amchem Products, Inc.
- Robert W. Koch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Stripping composition and method for metals
- Patent number 4,246,130
- Issue date Jan 20, 1981
- Amchem Products, Inc.
- Robert W. Koch
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Sulfuric acid paint stripper for rubber
- Patent number 3,993,804
- Issue date Nov 23, 1976
- Amchem Products, Inc.
- Newton W. McCready
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...