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Rolf Wehrmann
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Krefeld, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Multilayer composite material containing special polycarbonate comp...
Patent number
11,993,061
Issue date
May 28, 2024
Covestro Deutschland AG
Rolf Wehrmann
B32 - LAYERED PRODUCTS
Information
Patent Grant
Multilayer composite material containing special polycarbonate comp...
Patent number
11,505,665
Issue date
Nov 22, 2022
Covestro Deutschland AG
Rolf Wehrmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for producing an object by means of an additive manufacturin...
Patent number
11,472,099
Issue date
Oct 18, 2022
Covestro Deutschland AG
Dirk Achten
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Graphite-containing polycarbonate compositions containing a new typ...
Patent number
11,279,812
Issue date
Mar 22, 2022
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Layered manufacturing process for an object with different layer ma...
Patent number
11,267,192
Issue date
Mar 8, 2022
Covestro Deutschland AG
Dirk Achten
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Additive fabrication process with a structural material comprising...
Patent number
10,974,498
Issue date
Apr 13, 2021
Covestro Deutschland AG
Dirk Achten
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Polycarbonate compositions containing a carboxylic acid and their g...
Patent number
10,934,415
Issue date
Mar 2, 2021
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Poycarbonate compositions containing isosorbide diesters
Patent number
10,676,613
Issue date
Jun 9, 2020
Covestro Deutschland AG
Helmut Werner Heuer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate compositions containing polyglycidyl ether
Patent number
10,669,418
Issue date
Jun 2, 2020
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Improving the flowability of thermoconductive polycarbonate composi...
Patent number
10,472,516
Issue date
Nov 12, 2019
COVERSTRO DEUTSCHLAND AG
Helmut Werner Heuer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolycarbonate compositions with cyclic and linear oligomers and i...
Patent number
10,323,145
Issue date
Jun 18, 2019
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate compositions containing polyethylene wax
Patent number
10,189,941
Issue date
Jan 29, 2019
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Multi-layer film composite having a polycarbonate layer
Patent number
10,131,123
Issue date
Nov 20, 2018
Covestro AG
Helmut Werner Heuer
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Grant
Flowability of polycarbonate compositions
Patent number
10,119,009
Issue date
Nov 6, 2018
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolycarbonate compositions with branch structures and linear olig...
Patent number
9,969,879
Issue date
May 15, 2018
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-temperature (co)polycarbonates with improved rheological prope...
Patent number
9,783,673
Issue date
Oct 10, 2017
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-temperature (co)polycarbonates containing phthalimide and havi...
Patent number
9,718,951
Issue date
Aug 1, 2017
Covestro Deutschland AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate having improved thermal and mechanical properties and...
Patent number
9,676,716
Issue date
Jun 13, 2017
Covestro Deutschland AG
Helmut-Werner Heuer
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Polymer composition with heat-absorbing properties
Patent number
9,651,712
Issue date
May 16, 2017
Covestro Deutschland AG
Michael Erkelenz
G02 - OPTICS
Information
Patent Grant
Polymeric anti-static agent
Patent number
9,290,590
Issue date
Mar 22, 2016
Bayer Intellectual Property GmbH
Helmut Werner Heuer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
(Co)polycarbonates with improved optical properties
Patent number
9,139,730
Issue date
Sep 22, 2015
Bayer MaterialScience AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate compositions having improved optical properties
Patent number
8,664,349
Issue date
Mar 4, 2014
Bayer MaterialScience AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified polycarbonates having improved surface properties
Patent number
8,507,635
Issue date
Aug 13, 2013
Bayer Intellectual Property GmbH
Alexander Meyer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Branched melt polycarbonate with low content of defective structures
Patent number
8,487,025
Issue date
Jul 16, 2013
Bayer Material Science AG
Stephan Konrad
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate compositions having improved surface hardness
Patent number
8,470,934
Issue date
Jun 25, 2013
Bayer MaterialScience AG
Helmut-Werner Heuer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer composition with heat-absorbing properties and high stability
Patent number
8,399,547
Issue date
Mar 19, 2013
Bayer MaterialScience AG
Alexander Meyer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolycarbonates having improved surface hardness
Patent number
8,329,852
Issue date
Dec 11, 2012
Bayer MaterialScience AG
Helmut-Werner Heuer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Polycarbonate composition with improved melt-flowability
Patent number
8,163,822
Issue date
Apr 24, 2012
Bayer MaterialScience AG
Stephan Konrad
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonates having rearrangement structures, cyclic and linear o...
Patent number
8,158,745
Issue date
Apr 17, 2012
Bayer MaterialScience AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Polycarbonate Compositions Containing Titanium Dioxide and Glass Fl...
Publication number
20240026074
Publication date
Jan 25, 2024
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Flame-Retardant, Titanium Dioxide-Containing Polycarbonate Composit...
Publication number
20240002658
Publication date
Jan 4, 2024
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate Compositions Containing Titanium Dioxide and Epoxy Gr...
Publication number
20230416526
Publication date
Dec 28, 2023
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate Compositions Containing Titanium Dioxide and Metal Ox...
Publication number
20230407044
Publication date
Dec 21, 2023
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate Compositions Containing Polyethercarbonate Polyols
Publication number
20230151148
Publication date
May 18, 2023
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POLYCARBONATE COMPOSITIONS CONTAINING FILLERS AND TRIACYLGLYCEROL C...
Publication number
20230038482
Publication date
Feb 9, 2023
Covestro Intellectual Property GmbH & Co. KG
Helmut Werner HEUER
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
MULTILAYER COMPOSITE MATERIAL CONTAINING SPECIAL POLYCARBONATE COMP...
Publication number
20220135754
Publication date
May 5, 2022
COVESTRO DEUTSCHLAND AG
Rolf WEHRMANN
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
MULTILAYER COMPOSITE MATERIAL CONTAINING SPECIAL POLYCARBONATE COMP...
Publication number
20220088906
Publication date
Mar 24, 2022
Covestro Intellectual Property GmbH & Co. KG
Rolf WEHRMANN
B32 - LAYERED PRODUCTS
Information
Patent Application
MULTILAYER COMPOSITE DESIGN MATERIAL HAVING SPECIAL POLYCARBONATE C...
Publication number
20220025134
Publication date
Jan 27, 2022
COVESTRO DEUTSCHLAND AG
Rolf WEHRMANN
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
GRAPHITE-CONTAINING POLYCARBONATE COMPOSITIONS CONTAINING A NEW TYP...
Publication number
20210332216
Publication date
Oct 28, 2021
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
THERMOPLASTIC COMPOSITIONS HAVING GOOD STABILITY
Publication number
20210171767
Publication date
Jun 10, 2021
COVESTRO DEUTSCHLAND AG
Andreas Seidel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
MULTILAYER COMPOSITE MATERIAL CONTAINING SPECIAL POLYCARBONATE COMP...
Publication number
20200331247
Publication date
Oct 22, 2020
COVESTRO DEUTSCHLAND AG
Helmut Werner HEUER
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING AN OBJECT BY MEANS OF AN ADDITIVE MANUFACTURIN...
Publication number
20190366621
Publication date
Dec 5, 2019
COVESTRO DEUTSCHLAND AG
Dirk ACHTEN
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
LAYERED MANUFACTURING PROCESS FOR AN OBJECT WITH DIFFERENT LAYER MA...
Publication number
20190344497
Publication date
Nov 14, 2019
COVESTRO DEUTSCHLAND AG
Dirk Achten
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
ADDITIVE FABRICATION PROCESS WITH A STRUCTURAL MATERIAL COMPRISING...
Publication number
20190344555
Publication date
Nov 14, 2019
COVESTRO DEUTSCHLAND AG
Dirk ACHTEN
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
TRANSPARENT MOULDED PARTS HAVING REDUCED THICKNESS
Publication number
20190276597
Publication date
Sep 12, 2019
COVESTRO DEUTSCHLAND AG
Martin DÖBLER
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
MULTILAYER COMPOSITE MATERIAL CONTAINING SPECIAL POLYCARBONATE COMP...
Publication number
20190255825
Publication date
Aug 22, 2019
COVESTRO DEUTSCHLAND AG
Rolf WEHRMANN
B32 - LAYERED PRODUCTS
Information
Patent Application
POLYCARBONATE COMPOSITIONS CONTAINING A CARBOXYLIC ACID AND THEIR G...
Publication number
20190161576
Publication date
May 30, 2019
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYCARBONATE COMPOSITIONS CONTAINING A CARBOXYLIC ACID AND THEIR G...
Publication number
20190153199
Publication date
May 23, 2019
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
COPOLYCARBONATE AS A SUPPORTING MATERIAL IN 3-D PRINTING
Publication number
20190143582
Publication date
May 16, 2019
COVESTRO DEUTSCHLAND AG
Tim HUNGERLAND
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POYCARBONATE COMPOSITIONS CONTAINING ISOSORBIDE DIESTERS
Publication number
20190136047
Publication date
May 9, 2019
COVESTRO DEUTSCHLAND AG
Helmut Werner HEUER
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POLYCARBONATE COMPOSITIONS CONTAINING POLYGLYCIDYL ETHER
Publication number
20180355167
Publication date
Dec 13, 2018
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS HAVING IMPROVED FLOWABIL...
Publication number
20180201755
Publication date
Jul 19, 2018
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
IMPROVING THE FLOWABILITY OF THERMOCONDUCTIVE POLYCARBONATE COMPOSI...
Publication number
20180201780
Publication date
Jul 19, 2018
Covestro Deutschland AG
Helmut Werner HEUER
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
BORON NITRIDE HYBRID MATERIAL-CONTAINING THERMOPLASTIC COMPOSITION
Publication number
20180194925
Publication date
Jul 12, 2018
COVESTRO DEUTSCHLAND AG
Birte SÄMISCH
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
BORON NITRIDE-CONTAINING THERMOPLASTIC COMPOSITION
Publication number
20180194926
Publication date
Jul 12, 2018
COVESTRO DEUTSCHLAND AG
Birte SÄMISCH
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Copolycarbonate Compositions with Cyclic and Linear Oligomers and I...
Publication number
20180179378
Publication date
Jun 28, 2018
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
FILLED POLYCARBONATE COMPOSITIONS HAVING IMPROVED FLOWABILITY AND G...
Publication number
20170362430
Publication date
Dec 21, 2017
COVESTRO DEUTSCHLAND AG
Helmut Werner HEUER
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
COPOLYCARBONATE COMPOSITIONS WITH IMPROVED RHEOLOGICAL AND OPTICAL...
Publication number
20170362431
Publication date
Dec 21, 2017
COVESTRO DEUTSCHLAND AG
Rolf WEHRMANN
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
FLOWABILITY OF POLYCARBONATE COMPOSITIONS
Publication number
20170362410
Publication date
Dec 21, 2017
COVESTRO DEUTSCHLAND AG
Rolf Wehrmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...