Gerhard Thelen

Person

Nottuln, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Continuous process for the preparation of 4-amino-2,2,6,6-tetrameth...
- Patent number 5,773,622
- Issue date Jun 30, 1998
- Huels Aktiengesellschaft
- Udo Jegelka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solvent-free process for preparing 4-amino-2,2,6,6-tetramethylpiper...
- Patent number 5,693,817
- Issue date Dec 2, 1997
- Huels Aktiengesellschaft
- Stefan Frentzen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for preparing bis-para-aminocyclohexylmethane containing a...
- Patent number 5,578,546
- Issue date Nov 26, 1996
- Huels Aktiengesellschaft
- Dietrich Maschmeyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpiperidine
- Patent number 5,391,750
- Issue date Feb 21, 1995
- Huels Aktiengesellschaft
- Gerhard Thelen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ultrasound method of reactivating deactivated hydrogenation catalyts
- Patent number 5,132,270
- Issue date Jul 21, 1992
- Huels Aktiengesellschaft
- Gerhard Wachholz
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the manufacture of alkynediols by reaction of ketones w...
- Patent number 4,960,959
- Issue date Oct 2, 1990
- Huels Aktiengesellschaft
- Gerhard Thelen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of vinyl chloride by reaction of acetyl...
- Patent number 4,912,271
- Issue date Mar 27, 1990
- Huels Aktiengesellschaft
- Gerhard Thelen
- C07 - ORGANIC CHEMISTRY

Gerhard Thelen

Person

Patents Grantslast 30 patents

Continuous process for the preparation of 4-amino-2,2,6,6-tetrameth...

Solvent-free process for preparing 4-amino-2,2,6,6-tetramethylpiper...

Catalyst for preparing bis-para-aminocyclohexylmethane containing a...

Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpiperidine

Ultrasound method of reactivating deactivated hydrogenation catalyts

Process for the manufacture of alkynediols by reaction of ketones w...

Process for the manufacture of vinyl chloride by reaction of acetyl...