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Stefan Penninger
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Pulheim, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the production of stable polymers
Patent number
8,110,704
Issue date
Feb 7, 2012
Bayer MaterialScience LLC
James Michael Barnes
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of durene diisocyanate
Patent number
6,486,346
Issue date
Nov 26, 2002
Bayer Aktiengesellschaft
Peter Heitkämper
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of toluidines
Patent number
5,663,439
Issue date
Sep 2, 1997
Bayer Aktiengesellschaft
Stefan Penninger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diisocyanates and processes for their production and use
Patent number
5,552,507
Issue date
Sep 3, 1996
Bayer Aktiengesellschaft
Christian Wamprecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of highly pure aromatic diurethanes and...
Patent number
5,399,736
Issue date
Mar 21, 1995
Bayer Aktiengesellschaft
Wolfgang Friederichs
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cycloaliphatic diisocyanates, optionally in the form of isomeric mi...
Patent number
4,879,409
Issue date
Nov 7, 1989
Bayer Aktiengesellschaft
Hartmut Knofel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cycloaliphatic diisocyanates optionally in the form of isomer mixtu...
Patent number
4,879,408
Issue date
Nov 7, 1989
Bayer Aktiengesellschaft
Hartmut Knofel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dissocyanates, diisocyanate mixtures and a process for their produc...
Patent number
4,786,751
Issue date
Nov 22, 1988
Bayer Aktiengesellschaft
Hartmut Knofel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diamines and a process for their production
Patent number
4,720,582
Issue date
Jan 19, 1988
Bayer Aktiengesellschaft
Hartmut Knofel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cycloaliphatic triisocyanates
Patent number
4,675,437
Issue date
Jun 23, 1987
Bayer Aktiengesellschaft
Hartmut Knofel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Triisocyanates and a process for their preparation
Patent number
4,603,189
Issue date
Jul 29, 1986
Bayer Aktiengesellschaft
Hartmut Knofel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N- and O-substituted diurethanes and...
Patent number
4,593,117
Issue date
Jun 3, 1986
Bayer Aktiengesellschaft
Hartmut Knofel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of urethanes
Patent number
4,480,110
Issue date
Oct 30, 1984
Bayer Aktiengesellschaft
Peter Heitk/a/ mper
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for the production of stable polymers
Publication number
20080108776
Publication date
May 8, 2008
James Michael Barnes
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...