Helmut Wachtel

Follow

Person

Berlin, DT

People

Patents Grantslast 30 patents

Information Patent Grant
D-homo-20-ketopregnanes and method for inducing anesthesia or narcosis
- Patent number 4,056,633
- Issue date Nov 1, 1977
- Schering Aktiengesellschaft
- Ulrich Kerb
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
D-Homo-20-ketopregnanes
- Patent number 4,045,574
- Issue date Aug 30, 1977
- Schering Aktiengesellschaft
- Ulrich Kerb
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
18-Methyl-19-nor-20-ketopregnanes and process for the preparation t...
- Patent number 4,029,777
- Issue date Jun 14, 1977
- Schering Aktiengesellschaft
- Otto Engelfried
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzomorphan derivatives
- Patent number 4,020,164
- Issue date Apr 26, 1977
- Schering Aktiengesellschaft
- Dieter Rahtz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-(Polyalkoxyphenyl)-2-pyrrolidones
- Patent number 4,012,495
- Issue date Mar 15, 1977
- Schering Aktiengesellschaft
- Ralph Schmiechen
- C07 - ORGANIC CHEMISTRY