Walther Cohnen

Follow

Person

Cologne, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for troublefree coating of hydrophobic materials with polyu...
- Patent number 4,948,634
- Issue date Aug 14, 1990
- Miles Inc.
- Walther Cohnen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Multilayered color photographic material having an alkali soluble i...
- Patent number 4,940,653
- Issue date Jul 10, 1990
- Agfa-Gevaert Aktiengesellschaft
- Prem Lalvani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY