Heide Sprengel

Follow

Person

Wiesbaden, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Radiation polymerizable mixture containing reaction products of gly...
- Patent number 4,458,007
- Issue date Jul 3, 1984
- Hoechst Aktiengesellschaft
- Ulrich Geissler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for cleaning copper-containing metal surfaces
- Patent number 4,379,834
- Issue date Apr 12, 1983
- Hoechst Aktiengesellschaft
- Walter Herwig
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Photopolymerizable composition comprising a monoazo dye as contrast...
- Patent number 4,241,166
- Issue date Dec 23, 1980
- Hoechst Aktiengesellschaft
- Kurt Klupfel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photopolymerizable transfer material
- Patent number 4,233,395
- Issue date Nov 11, 1980
- Hoechst Aktiengesellschaft
- Kurt Klupfel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light-sensitive copying composition
- Patent number 4,179,292
- Issue date Dec 18, 1979
- Hoechst Aktiengesellschaft
- Kurt-Walter Klupfel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY