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Frank Kleiner
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Cologne, DE
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last 30 patents
Information
Patent Grant
Process for the production of carbonic acid esters
Patent number
5,486,642
Issue date
Jan 23, 1996
Bayer Aktiengesellschaft
Frank-Gerald Kleiner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of low-melting polymers containing at le...
Patent number
5,136,013
Issue date
Aug 4, 1992
Bayer Aktiengesellschaft
Dieter Arlt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of aromatic polyether ketones
Patent number
5,053,477
Issue date
Oct 1, 1991
Bayer Aktiengesellschaft
Sabine Kern
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of aromatic polyether ketones
Patent number
4,954,604
Issue date
Sep 4, 1990
Bayer Aktiengesellschaft
Joachim Genz
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thermotropic aromatic polymers with high elongation at break, proce...
Patent number
4,835,243
Issue date
May 30, 1989
Volker Eckhardt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of polyphosphonic acid amides
Patent number
4,701,554
Issue date
Oct 20, 1987
Bayer Aktiengesellschaft
Hermann Kauth
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of polyamide imides
Patent number
4,640,970
Issue date
Feb 3, 1987
Bayer Aktiengesellschaft
Wilfried Zecher
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Mixtures of special cycloaliphatic 1,2-diepoxides and their use
Patent number
4,581,441
Issue date
Apr 8, 1986
Bayer Aktiengesellschaft
Frank Kleiner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Plasticized polyvinyl alcohol
Patent number
4,529,666
Issue date
Jul 16, 1985
Bayer Aktiengesellschaft
Herbert Salzburg
B32 - LAYERED PRODUCTS
Information
Patent Grant
Polycarbonate/polybutylene terephthalate film
Patent number
4,515,925
Issue date
May 7, 1985
Bayer Aktiengesellschaft
Frank Kleiner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of modified polycarbonate molding compo...
Patent number
4,367,186
Issue date
Jan 4, 1983
Bayer Aktiengesellschaft
Siegfried Adelmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Flame-resistant moulding materials based on thermoplastic aromatic...
Patent number
4,366,276
Issue date
Dec 28, 1982
Bayer Aktiengesellschaft
Dieter Freitag
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Scratch-resistant and weather-resistant laminates based on polycarb...
Patent number
4,301,212
Issue date
Nov 17, 1981
Bayer Aktiengesellschaft
Wolfgang Cohnen
B32 - LAYERED PRODUCTS
Information
Patent Grant
Polycarbonates with alkylphenyl end groups, their preparation and t...
Patent number
4,269,964
Issue date
May 26, 1981
Bayer Aktiengesellschaft
Dieter Freitag
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate molding compositions with improved resilience properties
Patent number
4,252,922
Issue date
Feb 24, 1981
Bayer Aktiengesellschaft
Siegfried Adelmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate molding compositions with improved flame-repellency
Patent number
4,208,489
Issue date
Jun 17, 1980
Bayer Aktiengesellschaft
Manfred Schmidt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Apparatus for the continuous production of continuous plastics foam...
Patent number
4,158,538
Issue date
Jun 19, 1979
Bayer Aktiengesellschaft
Frank Kleiner
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL