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Rolf Bachmann
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Gladbach, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing polycarbonate
Patent number
11,459,424
Issue date
Oct 4, 2022
Covestro Deutschland AG
Jan Heijl
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for the production of polyether carbonate polyols and device...
Patent number
10,208,162
Issue date
Feb 19, 2019
Covestro Deutschland AG
Stefanie Braun
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for producing polycarbonate according to the phase interface...
Patent number
9,771,451
Issue date
Sep 26, 2017
Covestro Deutschland AG
Hermann Kauth
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing a silica sol material
Patent number
9,221,690
Issue date
Dec 29, 2015
JIANGSU SYNECOUN MEDICAL TECHNOLOGY CO., LTD.
Ekkehard Barth
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for preparing radiation-curable prepolymers containing uret...
Patent number
8,283,488
Issue date
Oct 9, 2012
Bayer MaterialScience AG
Björn Henninger
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Phase boundary processes for preparing polycarbonates
Patent number
7,847,051
Issue date
Dec 7, 2010
Bayer MaterialScience AG
Wolfgang Ebert
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of aliphatic oligocarbonate diols
Patent number
7,420,077
Issue date
Sep 2, 2008
Bayer MaterialScience AG
Steffen Hofacker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of aliphatic oligocarbonate diols
Patent number
7,238,825
Issue date
Jul 3, 2007
Bayer MaterialScience AG
Steffen Hofacker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Reactive rectification
Patent number
7,071,283
Issue date
Jul 4, 2006
Bayer MaterialScience AG
Gerald John
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing oligocarbonates
Patent number
6,835,797
Issue date
Dec 28, 2004
Bayer Aktiengesellschaft
Uwe Hucks
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Aqueous copolymers, a process for their preparation and their use i...
Patent number
6,531,535
Issue date
Mar 11, 2003
Bayer Aktigensellschaft
Martin Melchiors
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Aqueous copolymers, a process for their preparation and their use i...
Patent number
6,399,691
Issue date
Jun 4, 2002
Bayer Aktiengesellschaft
Martin Melchiors
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 the manufacture of thermoplastic polycarbonate
Patent number
5,648,437
Issue date
Jul 15, 1997
Bayer Aktiengesellschaft
Thomas Fischer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polycarbonate of constant viscosity
Patent number
5,412,060
Issue date
May 2, 1995
Bayer Aktiengesellschaft
Claus Wulff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
PROCESS FOR PRODUCING POLYETHER CARBONATE POLYOLS
Publication number
20230069332
Publication date
Mar 2, 2023
COVESTRO DEUTSCHLAND AG
Stefanie Braun
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYCARBONATE USING A REDUCED PHOSGENE EXCESS
Publication number
20220185955
Publication date
Jun 16, 2022
Covestro Intellectual Property GmbH & Co. KG
Rolf Bachmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYCARBONATE - POINT OF ADDITION OF THE CHAI...
Publication number
20220169787
Publication date
Jun 2, 2022
Covestro Intellectual Property GmbH & Co. KG
Rolf Bachmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING POLYCARBONATE
Publication number
20210371585
Publication date
Dec 2, 2021
COVESTRO DEUTSCHLAND AG
Jan Heijl
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for the Production of Polyether Carbonate Polyols and Device...
Publication number
20170198092
Publication date
Jul 13, 2017
COVESTRO DEUTSCHLAND AG
Stefanie Braun
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING POLYCARBONATE ACCORDING TO THE PHASE INTERFACE...
Publication number
20160326315
Publication date
Nov 10, 2016
COVESTRO DEUTSCHLAND AG
Hermann KAUTH
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR THE CONTINUOUS PRODUCTION OF WATER-DISPERSIBLE VINYL POL...
Publication number
20150051337
Publication date
Feb 19, 2015
Bayer Intellectual Property GmbH Creative Campus Monheim
Evgeny Avtomonov
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PROCESS FOR PRODUCING A SILICA SOL MATERIAL
Publication number
20130145964
Publication date
Jun 13, 2013
Bayer Innovation GmbH
Ekkehard Barth
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD FOR PRODUCING HYDROXYALKYL(METH)ACRYLATES
Publication number
20120271064
Publication date
Oct 25, 2012
Bayer Material Science AG
Björn Henninger
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PREPARING RADIATION-CURABLE PREPOLYMERS CONTAINING URET...
Publication number
20100022797
Publication date
Jan 28, 2010
Bayer Technology Services GmbH
Björn HENNINGER
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
PHASE BOUNDARY PROCESSES FOR PREPARING POLYCARBONATES
Publication number
20090275709
Publication date
Nov 5, 2009
Bayer MaterialScience AG
Wolfgang Ebert
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Preparation of aliphatic oligocarbonate diols
Publication number
20070219388
Publication date
Sep 20, 2007
Steffen Hofacker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Preparation of aliphatic oligocarbonate diols
Publication number
20050065360
Publication date
Mar 24, 2005
Steffen Hofacker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Reactive rectification
Publication number
20040039151
Publication date
Feb 26, 2004
Gerald John
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Aqueous copolymers, a process for their preparation and their use i...
Publication number
20020151638
Publication date
Oct 17, 2002
Martin Melchiors
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Process for producing oligocarbonates
Publication number
20020137874
Publication date
Sep 26, 2002
Uwe Hucks
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Reactive rectification
Publication number
20020099163
Publication date
Jul 25, 2002
Gerald John
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL