Wolfgang Koch

Person

Bomlitz, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Cellulose ethers
- Patent number 6,939,960
- Issue date Sep 6, 2005
- Wolff Walsrode AG
- Erik-Andreas Klohr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of producing regioselectively substituted esters of oligo- a...
- Patent number 6,852,852
- Issue date Feb 8, 2005
- Wolff Walsrode AG
- Erik-Andreas Klohr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Multicrystalline silicon having a low proportion of active grain bo...
- Patent number 6,576,831
- Issue date Jun 10, 2003
- Deutsche Solar GmbH
- Peter Woditsch
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxy...
- Patent number 6,559,300
- Issue date May 6, 2003
- Wolff Walsrode AG
- Joachim Simon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Regioselectively substituted esters of oligo- and polysaccharides a...
- Patent number 6,489,468
- Issue date Dec 3, 2002
- Wolff Walsrode AG
- Erik-Andreas Klohr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cellulose ethers and method for producing the same
- Patent number 6,482,940
- Issue date Nov 19, 2002
- Wolff Walsrode AG
- Erik-Andreas Klohr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Silicon with structured oxygen doping, its production and use
- Patent number 6,294,726
- Issue date Sep 25, 2001
- Bayer Aktiengesellschaft
- Christian Hässler
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for producing cellulose derivatives
- Patent number 6,146,858
- Issue date Nov 14, 2000
- Wolff Walsrode AG
- Rainhardt Koch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of retention and dewatering agents base...
- Patent number 5,886,095
- Issue date Mar 23, 1999
- Wolff Walsrode AG
- Roland Bayer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Thermoplastic and biodegradable polysaccharide esters/polysaccharid...
- Patent number 5,717,087
- Issue date Feb 10, 1998
- Wolff Walsrode AG
- Jochen Kalbe
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Thermoplastic biodegradable polysaccharide derivatives, process for...
- Patent number 5,639,865
- Issue date Jun 17, 1997
- Wolff Walsrode Aktiengesellschaft
- Jochen Kalbe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Superabsorbent polymers from cross-linked polyacrylonitrile emulsions
- Patent number 5,635,569
- Issue date Jun 3, 1997
- Bayer Aktiengesellschaft
- Gunter Sackmann
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for preparing a mixture of .alpha.- and .beta.-chloroethyl-g...
- Patent number 5,585,471
- Issue date Dec 17, 1996
- Wolff Walsrode Aktiengesellschaft
- Klaus Szablikowski
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermoplastic cellulose ether ester graft copolymers and process fo...
- Patent number 5,466,794
- Issue date Nov 14, 1995
- Wolff Walsrode Aktiengesellschaft
- Jochen Kalbe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for the preparation of cationic, water-soluble polymers and...
- Patent number 5,446,107
- Issue date Aug 29, 1995
- Wolff Walsrode Aktiengesellschaft
- Klaus Szablikowski
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of low molecular weight acrylonitrile po...
- Patent number 5,393,845
- Issue date Feb 28, 1995
- Wolff Walsrode AG
- Siegfried Korte
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Binders containing ethylenically unsaturated groups and their use f...
- Patent number 5,274,067
- Issue date Dec 28, 1993
- Wolff Walsrode AG
- Burkhard Kressdorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cellulose ester/polymer combinations, and their preparation and use
- Patent number 5,011,874
- Issue date Apr 30, 1991
- Wolff Walsrode Aktiengesellschaft
- Lutz Hoppe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aqueous cellulose ester dispersions and their preparation
- Patent number 4,970,247
- Issue date Nov 13, 1990
- Wolff Walsrode Aktiengesellschaft
- Lutz Hoppe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of low carbon silicon
- Patent number 4,877,596
- Issue date Oct 31, 1989
- Bayer Aktiengesellschaft
- Ingo Schwirtlich
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyarylene sulphides with functional...
- Patent number 4,605,713
- Issue date Aug 12, 1986
- Bayer Aktiengesellschaft
- Walter Heitz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyarylene sulphides with functional...
- Patent number 4,605,732
- Issue date Aug 12, 1986
- Bayer Aktiengesellschaft
- Walter Heitz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of coarsely crystalline silicon
- Patent number 4,561,930
- Issue date Dec 31, 1985
- Bayer Aktiengesellschaft
- Ingo Schwirtlich
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for the production of optionally branched polyarylene sulfides
- Patent number 4,537,951
- Issue date Aug 27, 1985
- Bayer Aktiengesellschaft
- Karsten Idel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of optionally branched polyarylene sulph...
- Patent number 4,525,579
- Issue date Jun 25, 1985
- Bayer Aktiengesellschaft
- Karsten Idel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Process for the preparation of cellulose derivatives containing ami...
- Publication number 20060041117
- Publication date Feb 23, 2006
- Jurgen Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for producing highly-substituted carboxyalkyl starch
- Publication number 20040039191
- Publication date Feb 26, 2004
- Bert Volkert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method of producing regioselectively substituted esters of oligo- a...
- Publication number 20030162745
- Publication date Aug 28, 2003
- Erik-Andreas Klohr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Novel cellulose ethers
- Publication number 20030032798
- Publication date Feb 13, 2003
- Erik-Andreas Klohr
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for preparing low-viscosity, aqueous cellulose ether solutions
- Publication number 20020168407
- Publication date Nov 14, 2002
- Wolfgang Koch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Multicrystalline silicon having a low proportion of active grain bo...
- Publication number 20020078992
- Publication date Jun 27, 2002
- Peter Woditsch
- C30 - CRYSTAL GROWTH

Wolfgang Koch

Person

Patents Grantslast 30 patents

Cellulose ethers

Method of producing regioselectively substituted esters of oligo- a...

Multicrystalline silicon having a low proportion of active grain bo...

Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxy...

Regioselectively substituted esters of oligo- and polysaccharides a...

Cellulose ethers and method for producing the same

Silicon with structured oxygen doping, its production and use

Method for producing cellulose derivatives

Process for the preparation of retention and dewatering agents base...

Thermoplastic and biodegradable polysaccharide esters/polysaccharid...

Thermoplastic biodegradable polysaccharide derivatives, process for...

Superabsorbent polymers from cross-linked polyacrylonitrile emulsions

Method for preparing a mixture of .alpha.- and .beta.-chloroethyl-g...

Thermoplastic cellulose ether ester graft copolymers and process fo...

Method for the preparation of cationic, water-soluble polymers and...

Process for the production of low molecular weight acrylonitrile po...

Binders containing ethylenically unsaturated groups and their use f...

Cellulose ester/polymer combinations, and their preparation and use

Aqueous cellulose ester dispersions and their preparation

Process for the production of low carbon silicon

Process for the production of polyarylene sulphides with functional...

Process for the production of polyarylene sulphides with functional...

Process for the production of coarsely crystalline silicon

Process for the production of optionally branched polyarylene sulfides

Process for the production of optionally branched polyarylene sulph...

Patents Applicationslast 30 patents

Process for the preparation of cellulose derivatives containing ami...

Method for producing highly-substituted carboxyalkyl starch

Method of producing regioselectively substituted esters of oligo- a...

Novel cellulose ethers

Process for preparing low-viscosity, aqueous cellulose ether solutions

Multicrystalline silicon having a low proportion of active grain bo...