Norbert Wiegand

Follow

Person

Hanau, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of 1,3-propanediol
- Patent number 5,334,778
- Issue date Aug 2, 1994
- Degussa Aktiengesellschaft
- Thomas Haas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the production of 1,3-propandiol
- Patent number 5,171,898
- Issue date Dec 15, 1992
- Degussa Aktiengesellschaft
- Dietrich Arntz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing 1,3-propanediol
- Patent number 5,015,789
- Issue date May 14, 1991
- Degussa Aktiengesellschaft
- Dietrich Arntz
- C07 - ORGANIC CHEMISTRY