Klaus-Dieter Steffen

Follow

Person

Troisdorf-Oberlar, DT

People

Patents Grantslast 30 patents

Information Patent Grant
Preparation of high-molecular weight thermoplastic polyorganosilici...
- Patent number 4,026,827
- Issue date May 31, 1977
- Dynamit Nobel Aktiengesellschaft
- Klaus-Dieter Steffen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for the preparation of bis-(bromomethyl)-tetrachlorobenzenes...
- Patent number 3,981,936
- Issue date Sep 21, 1976
- Dynamit Nobel Aktiengesellschaft
- Egon Petersen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-Amino-4,5,6-trichloro-7-nitriloindazoles
- Patent number 3,963,739
- Issue date Jun 15, 1976
- Dynamit Nobel Aktiengesellschaft
- Klaus-Dieter Steffen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing alkylalkoxysilanes containing polysulfide bridges
- Patent number 3,946,059
- Issue date Mar 23, 1976
- Dynamit Nobel Aktiengesellschaft
- Paul Janssen
- C07 - ORGANIC CHEMISTRY