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Manfred Bergfeld
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Erlenbach, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the preparation of polymeric hydroxyalkyl terminated po...
Patent number
7,482,424
Issue date
Jan 27, 2009
Akzo Nobel N.V.
Michael Zeitler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Oxidation of mercaptoethanol
Patent number
7,423,183
Issue date
Sep 9, 2008
Thioplast Chemicals GmbH & Co. KG
Michael Zeitler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process to make aminated polyolefins
Patent number
6,583,231
Issue date
Jun 24, 2003
Akzo Nobel N.V.
Klaus Ihrig
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of glyceraldehyde and derivatives thereof
Patent number
6,320,084
Issue date
Nov 20, 2001
Akzo Nobel N.V.
Ulrich Wecker
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of N, N, N′, N′,-tetra-(...
Patent number
6,222,075
Issue date
Apr 24, 2001
Akzo Nobel N.V.
Klaus Ihrig
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing ester quats
Patent number
6,166,232
Issue date
Dec 26, 2000
Akzo Nobel N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for dehydrogenation of amino alcohols to amino carboxylic...
Patent number
6,159,894
Issue date
Dec 12, 2000
Akzo Nobel NV
Ludwig Eisenhuth
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of Gamma-Butyrolactone and the use thereof
Patent number
6,075,153
Issue date
Jun 13, 2000
Akzo Nobel N.V.
Manfred J. Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for manufacturing 2-pyrrolidone or N-alkylpyrrolidones
Patent number
6,008,375
Issue date
Dec 28, 1999
Akzo Nobel N.V.
Manfred J. Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the oxidation of di-, tri-, oligo- and polysaccharides...
Patent number
5,977,350
Issue date
Nov 2, 1999
Akzo Nobel N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for manufacturing tert-butylamine
Patent number
5,648,546
Issue date
Jul 15, 1997
Akzo Nobel, N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of level-off DP cellulose
Patent number
5,543,511
Issue date
Aug 6, 1996
Akzo Nobel N.V.
Manfred J. Bergfeld
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing gamma-butyrolactone
Patent number
5,536,849
Issue date
Jul 16, 1996
Akzo Nobel N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing pyrrolidone and N-alkyl pyrrolidones
Patent number
5,478,950
Issue date
Dec 26, 1995
Akzo Nobel N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for continuous manufacture of alkylglycosides
Patent number
5,459,249
Issue date
Oct 17, 1995
Akzo Nobel N.V.
Manfred J. Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of benzothiazolyl-2-sulphenamides
Patent number
5,436,346
Issue date
Jul 25, 1995
Akzo Nobel N.V.
Ludwig Eisenhuth
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for manufacturing dibenzylamine
Patent number
5,430,187
Issue date
Jul 4, 1995
Akzo nv
Burkhard Weuste
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-mercaptobenzothiazole
Patent number
5,367,082
Issue date
Nov 22, 1994
Akzo nv
Manfred J. Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-aminodithiothiazoles and 2-aminotr...
Patent number
5,124,450
Issue date
Jun 23, 1992
Akzo N.V.
Manfred J. Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thiuram polysulfide production
Patent number
5,021,603
Issue date
Jun 4, 1991
Akzo N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thiuram polysulfide
Patent number
5,015,752
Issue date
May 14, 1991
Akzo N.V.
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N,N'-disubstituted guanidines
Patent number
4,898,978
Issue date
Feb 6, 1990
Akzo nv
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for synthesizing alkylene bisdithiocarbamates or the ammoni...
Patent number
4,853,475
Issue date
Aug 1, 1989
Akzo nv
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for synthesizing an ammonia complex of zinc bisdithiocarbamate
Patent number
4,831,171
Issue date
May 16, 1989
Akzo nv
Manfred Bergfeld
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of ethylene-ethane mixtures
Patent number
4,783,572
Issue date
Nov 8, 1988
Akzo nv
Klaus Wohlfahrt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of thiazolyl-2-sulphenamides
Patent number
4,670,556
Issue date
Jun 2, 1987
Akzo nv
Hans Zengel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of dithiazolyl disulfides
Patent number
4,558,135
Issue date
Dec 10, 1985
Akzona Incorporated
Hans-Georg Zengel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of trans cyclohexane 1,4-diamine
Patent number
4,486,603
Issue date
Dec 4, 1984
Akzona Incorporated
Hans Zengel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of thiuram disulfides
Patent number
4,468,526
Issue date
Aug 28, 1984
Akzona Incorporated
Ludwig Eisenhuth
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of trans cyclohexane 1,4-diurea
Patent number
4,467,114
Issue date
Aug 21, 1984
Akzona Incorporated
Hans Zengel
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for the Preparation of Polymeric Hydroxyalkyl Terminated Po...
Publication number
20070249860
Publication date
Oct 25, 2007
Michael Zeitler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for production of prepolymers made from polysulphides and po...
Publication number
20060287466
Publication date
Dec 21, 2006
Michael Zeitler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Oxidation of mercaptoethanol
Publication number
20060142616
Publication date
Jun 29, 2006
Michael Zeitler
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method for the production of epoxidized polysulfides
Publication number
20050131207
Publication date
Jun 16, 2005
Michael Zeitler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for producing epoxidised polysulfides
Publication number
20050119449
Publication date
Jun 2, 2005
Michael Zeitler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process to make aminated polyolefins
Publication number
20010027239
Publication date
Oct 4, 2001
Klaus Ihrig
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...