Robert W. Grich

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North Wales, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Aldehyde scrubbing in crust leather and tanned leather
- Patent number 9,212,402
- Issue date Dec 15, 2015
- Rohm & Haas Company
- Anton G. El A'mma
- C14 - SKINS HIDES PELTS LEATHER

Patents Applicationslast 30 patents

Information Patent Application
Aldehyde scrubbing in crust leather and tanned leather
- Publication number 20100068541
- Publication date Mar 18, 2010
- Anton G. El A'mma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...