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Herbert Klenk
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Hanau, DE
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last 30 patents
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Patent Grant
Production and use of salts of 6,8-bis (amidiniumthio)-octanoic acid
Patent number
6,013,815
Issue date
Jan 11, 2000
ASTA Medica Aktiengesellschaft
Thomas Beisswenger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production and use of salts of 6, 8-bis (amidiniumthio) -octanoic acid
Patent number
5,760,268
Issue date
Jun 2, 1998
ASTA Medica Aktiengesellschaft
Thomas Beisswenger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
RS-thioctic acid with novel morphology
Patent number
5,455,264
Issue date
Oct 3, 1995
ASTA Medica Aktiengesellschaft
Thomas Beisswenger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the simultaneous production of 1,2- and 1,3-propanediol
Patent number
5,426,249
Issue date
Jun 20, 1995
Degussa Aktiengesellschaft
Thomas Haas
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of acrolein
Patent number
5,387,720
Issue date
Feb 7, 1995
Degussa Aktiengesellschaft
Armin Neher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active salts of a substituted thiazolidine-4-carboxylate...
Patent number
5,191,085
Issue date
Mar 2, 1993
Degussa Aktiengesellschaft
Harald Jakob
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing L-carnitine from D,L-carnitine nitrile salts
Patent number
5,166,426
Issue date
Nov 24, 1992
Degussa AG
Harald Jakob
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the recovery of aqueous solutions of free, neutral .alph...
Patent number
5,049,283
Issue date
Sep 17, 1991
Degussa Aktiengesellschaft
Hans-Joachim Hasselbach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active salts of a substituted thiazolidine-4-carboxylate...
Patent number
4,914,208
Issue date
Apr 3, 1990
Degussa Aktiengesellschaft
Harald Jakob
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing m-trifluoromethylphenyl acetonitrile
Patent number
4,824,987
Issue date
Apr 25, 1989
Degussa Aktiengesellschaft
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of thiosemicarbazide
Patent number
4,716,247
Issue date
Dec 29, 1987
Degussa Aktiengesellschaft
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 2-amino-5-mercapto-1,3,4-thiadiazole
Patent number
4,492,793
Issue date
Jan 8, 1985
Degussa Aktiengesellschaft
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of .beta.-mercaptopropionic acid derivat...
Patent number
4,490,307
Issue date
Dec 25, 1984
Degussa Aktiengesellschaft
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Herbicidally active 1,2,4-triazin-5-one derivatives
Patent number
4,402,733
Issue date
Sep 6, 1983
Ciba-Geigy Corporation
Georg Pissiotas
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Stabilizing caprolactones with dihydroxybenzenes
Patent number
4,360,682
Issue date
Nov 23, 1982
Deutsche Gold- und Silberscheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of .epsilon.-caprolactone
Patent number
4,341,709
Issue date
Jul 27, 1982
Bayer Aktiengesellschaft
Willi Hofen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of caboxylic acid cyanides
Patent number
4,339,591
Issue date
Jul 13, 1982
Degussa Aktiengesellschaft
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 4-amino-6-tert. butyl-3-mercapto-1,2,...
Patent number
4,326,056
Issue date
Apr 20, 1982
Degussa Aktiengesellschaft
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of very pure .epsilon.-caprolactone
Patent number
4,313,879
Issue date
Feb 2, 1982
Degusa AG
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-Substituted .alpha.-ketocarboxylic acid amides
Patent number
4,228,082
Issue date
Oct 14, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of N-substituted .alpha.-ketocarboxylic...
Patent number
4,224,226
Issue date
Sep 23, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of benzoyl cyanide (I)
Patent number
4,209,461
Issue date
Jun 24, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 1,2,4-triazin-5-one derivatives
Patent number
4,175,188
Issue date
Nov 20, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of alpha-ketocarboxylic acid amides and...
Patent number
4,161,491
Issue date
Jul 17, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Axel Kleemann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of benzoyl cyanide (IV)
Patent number
4,144,269
Issue date
Mar 13, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted cyclopropyl glyoxylnitriles
Patent number
4,122,116
Issue date
Oct 24, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of benzoyl cyanide (II)
Patent number
4,117,008
Issue date
Sep 26, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessier
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of benzoyl cyanide (I)
Patent number
4,113,773
Issue date
Sep 12, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of acyl cyanides (B)
Patent number
4,108,875
Issue date
Aug 22, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of acyl cyanides (A)
Patent number
4,108,877
Issue date
Aug 22, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Herbert Klenk
C07 - ORGANIC CHEMISTRY