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Steffen Kuhling
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Meerbusch, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the production of polycarbonate
Patent number
7,129,315
Issue date
Oct 31, 2006
Bayer MaterialScience AG
Jörg Kirchhoff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of polycarbonate
Patent number
7,091,302
Issue date
Aug 15, 2006
Bayer MaterialScience AG
Jörg Kirchhoff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Optical data carriers and method for producing the same
Patent number
6,855,390
Issue date
Feb 15, 2005
Bayer Aktiengesellschaft
Wilfried Haese
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate substrates
Patent number
6,855,794
Issue date
Feb 15, 2005
Bayer Aktiengesellschaft
Michael Bödiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of producing polycarbonates
Patent number
6,835,798
Issue date
Dec 28, 2004
Bayer Aktiengesellschaft
Michael Bödiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate substrates
Patent number
6,815,524
Issue date
Nov 9, 2004
Bayer Aktiengesellschaft
Michael Bödiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-purity polymer granules and method for the production thereof
Patent number
6,720,406
Issue date
Apr 13, 2004
Bayer Aktiengesellschaft
Thomas Elsner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate substrates
Patent number
6,710,154
Issue date
Mar 23, 2004
Bayer Aktiengesellschaft
Tony van Osselaer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing polycarbonate
Patent number
6,703,473
Issue date
Mar 9, 2004
Bayer Aktiengesellschaft
Uwe Hucks
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate substrates
Patent number
6,696,542
Issue date
Feb 24, 2004
Bayer Aktiengesellschaft
Michael Bödiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method and device for producing bisphenol a prills and bisphenol a...
Patent number
6,689,464
Issue date
Feb 10, 2004
Bayer Aktiengesellschaft
Rolf Lanze
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polycarbonate containers
Patent number
6,682,794
Issue date
Jan 27, 2004
Bayer Aktiengesellschaft
Klaus Horn
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Continuous process for the production of carboxylic acid diaryl esters
Patent number
6,680,400
Issue date
Jan 20, 2004
Bayer Aktiengesellschaft
Wolfgang Alewelt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of copolycarbonates
Patent number
6,646,101
Issue date
Nov 11, 2003
Bayer Aktiengesellschaft
Silke Kratschmer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Use of copolycarbonates
Patent number
6,586,556
Issue date
Jul 1, 2003
Bayer Aktiengesellschaft
Silke Kratschmer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing carbonic acid diaryl ester
Patent number
6,548,691
Issue date
Apr 15, 2003
Bayer Aktiengesellscaft
Wolfgang Alewelt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Continuous process for producing carbonic acid diaryl ester
Patent number
6,531,623
Issue date
Mar 11, 2003
Bayer Aktiengesellschaft
Andreas Chrisochoou
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing bisphenol-A
Patent number
6,414,198
Issue date
Jul 2, 2002
Bayer Aktiengesellschaft
Rolf Lanze
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polycarbonates with a low yellowness index
Patent number
6,395,864
Issue date
May 28, 2002
Bayer Aktiengesellschaft
Steffen Kühling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous production of aryl carbonates
Patent number
5,900,501
Issue date
May 4, 1999
Bayer Aktiengesellschaft
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of multilayer plastic sheets
Patent number
5,856,012
Issue date
Jan 5, 1999
Bayer AG
Steffen Kuhling
B32 - LAYERED PRODUCTS
Information
Patent Grant
Process for the isolation of partially crystalline polycarbonate po...
Patent number
5,830,977
Issue date
Nov 3, 1998
Bayer Aktiengesellschaft
Claus Wulff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous production of aryl carbonates
Patent number
5,831,111
Issue date
Nov 3, 1998
Bayer AG
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of poly (diorganosiloxane)/polycarbonate...
Patent number
5,783,651
Issue date
Jul 21, 1998
Bayer AG
Annett Konig
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Two-step process for the production of thermoplastic polycarbonate
Patent number
5,767,224
Issue date
Jun 16, 1998
Bayer Aktiengesellschaft
Steffen Kuhling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing thermoplastic polycarbonate
Patent number
5,756,641
Issue date
May 26, 1998
Bayer Aktiengesellschaft
Steffen Kuhling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing diaryl carbonates and the polycarbonates obta...
Patent number
5,739,258
Issue date
Apr 14, 1998
Bayer AG
Gottfried Zaby
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification of carbonic acid diaryl ester
Patent number
5,734,004
Issue date
Mar 31, 1998
Bayer Aktiengesellschaft
Steffen Kuhling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the continuous production of diaryl carbonates
Patent number
5,710,310
Issue date
Jan 20, 1998
Bayer Aktiengesellschaft
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the chemical recycling of polycarbonates
Patent number
5,652,275
Issue date
Jul 29, 1997
Bayer Aktiengesellschaft
Hans-Josef Buysch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Process for the preparation of polycarbonate
Publication number
20050239995
Publication date
Oct 27, 2005
Bayer MaterialScience AG
Jorg Kirchhoff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for the production of polycarbonate
Publication number
20050239996
Publication date
Oct 27, 2005
Jorg Kirchhoff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate substrates
Publication number
20050043500
Publication date
Feb 24, 2005
Michael Bodiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate substrates
Publication number
20040166283
Publication date
Aug 26, 2004
Michael Bodiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Use of copolycarbonates
Publication number
20030092873
Publication date
May 15, 2003
Silke Kratschmer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate substrates
Publication number
20030004297
Publication date
Jan 2, 2003
Tony van Osselaer
G11 - INFORMATION STORAGE
Information
Patent Application
Use of copolycarbonates
Publication number
20020120092
Publication date
Aug 29, 2002
Silke Kratschmer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for producing polycarbonate
Publication number
20020095020
Publication date
Jul 18, 2002
Uwe Hucks
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Continuous process for the production of carboxylic acid diaryl esters
Publication number
20020087021
Publication date
Jul 4, 2002
Wolfgang Alewelt
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Continuous process for producing carbonic acid diaryl ester
Publication number
20020087022
Publication date
Jul 4, 2002
Andreas Chrisochoou
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for producing carbonic acid diaryl ester
Publication number
20020077446
Publication date
Jun 20, 2002
Wolfgang Alewelt
C07 - ORGANIC CHEMISTRY