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Patents Grants
last 30 patents
Information
Patent Grant
Ultra-high purity polycarbonates having good inherent color and the...
Patent number
10,435,507
Issue date
Oct 8, 2019
Covestro Deutschland AG
Thomas Koenig
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Ultra-high purity polycarbonates having good inherent color and the...
Patent number
9,828,464
Issue date
Nov 28, 2017
Covestro Deutschland AG
Thomas König
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Alkylphenol for adjusting the molecular weight, and polycarbonate c...
Patent number
8,202,961
Issue date
Jun 19, 2012
Bayer MaterialScience AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for treatment of metal surfaces
Patent number
7,901,467
Issue date
Mar 8, 2011
Bayer MaterialScience AG
Wolfgang Ebert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Process for the preparation of polycarbonates
Patent number
7,705,107
Issue date
Apr 27, 2010
Bayer MaterialScience AG
Hermann Kauth
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
ULTRA-HIGH PURITY POLYCARBONATES HAVING GOOD INHERENT COLOR AND THE...
Publication number
20180105644
Publication date
Apr 19, 2018
COVESTRO DEUTSCHLAND AG
Thomas Koenig
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
ULTRA-HIGH PURITY POLYCARBONATES HAVING GOOD INHERENT COLOR AND THE...
Publication number
20120157653
Publication date
Jun 21, 2012
BAYER MATERIAL SECIENCE AG
Thomas König
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
ALKYLPHENOL FOR ADJUSTING THE MOLECULAR WEIGHT, AND POLYCARBONATE C...
Publication number
20100317776
Publication date
Dec 16, 2010
Bayer MaterialScience AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Process for treatment of metal surfaces
Publication number
20080210343
Publication date
Sep 4, 2008
Wolfgang Ebert
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Process for the filtration of molten polycarbonate
Publication number
20080154018
Publication date
Jun 26, 2008
Wolfgang Ebert
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Polycarbonate for transparent injection-molded articles
Publication number
20080107858
Publication date
May 8, 2008
Bayer MaterialScience AG
Alexander Meyer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for the preparation of polycarbonates
Publication number
20060155098
Publication date
Jul 13, 2006
Hermann Kauth
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...