Klaus Berg

Person

Krefeld, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the manufacture of bis(4-hydroxyaryl)alkanes
- Patent number 6,486,363
- Issue date Nov 26, 2002
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(Co)polycarbonates stabilized against .gamma.-radiation
- Patent number 5,936,007
- Issue date Aug 10, 1999
- Bayer AG
- Wolfgang Ebert
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
(Co) polycarbonates stabilised against .gamma.-radiation
- Patent number 5,852,070
- Issue date Dec 22, 1998
- Bayer AG
- Wolfgang Ebert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Bisphenol synthesis on modified ion-exchange resins using specially...
- Patent number 5,780,690
- Issue date Jul 14, 1998
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Flame-resistant polycarbonate moulding-compositions
- Patent number 5,693,697
- Issue date Dec 2, 1997
- Bayer Aktiengesellschaft
- Richard Weider
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the continuous production of high purity bisphenol A
- Patent number 5,545,764
- Issue date Aug 13, 1996
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process of regenerating sulfonic acid cation exchange resins with a...
- Patent number 5,455,282
- Issue date Oct 3, 1995
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optimized ion exchanger beds for the synthesis of bisphenol A
- Patent number 5,395,857
- Issue date Mar 7, 1995
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of bisphenols
- Patent number 5,302,774
- Issue date Apr 12, 1994
- Bayer Aktiengesellschaft
- Klaus Berg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of bisphenols
- Patent number 5,269,887
- Issue date Dec 14, 1993
- Bayer Aktiengesellschaft
- Wolfgang Jakob
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of substituted cycloalkylidene bisphenols
- Patent number 5,210,328
- Issue date May 11, 1993
- Bayer Aktiengesellschaft
- Dieter Freitag
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycarbonate from bi(tetrahydrofuran)di phenol
- Patent number 5,128,437
- Issue date Jul 7, 1992
- Bayer Aktiengesellschaft
- Uwe Westeppe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of carboxylic acid esters
- Patent number 5,004,569
- Issue date Apr 2, 1991
- Bayer Aktiengesellschaft
- Helmut-Martin Meier
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Moulding compounds of polycarbonate mixtures having a high disperse...
- Patent number 4,980,426
- Issue date Dec 25, 1990
- Bayer Aktiengesellschaft
- Klaus Berg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modif...
- Patent number 4,954,569
- Issue date Sep 4, 1990
- Gunther Weymans
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photosensitive recording material suited for use in electrophotogra...
- Patent number 4,943,502
- Issue date Jul 24, 1990
- Agfa-Gevaert, N.V.
- David R. Terrell
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Use of mixtures of polycarbonates and styrene polymers as substrate...
- Patent number 4,902,746
- Issue date Feb 20, 1990
- Bayer Aktiengesellschaft
- Volker Serini
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vinyl copolymers with grafted-on polycarbonate chains, their produc...
- Patent number 4,874,816
- Issue date Oct 17, 1989
- Bayer Aktiengesellschaft
- Ralf Dujardin
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polycarbonate solutions
- Patent number 4,873,314
- Issue date Oct 10, 1989
- Bayer Aktiengesellschaft
- Klaus Berg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluorinated alkylamidosulphonates, their preparation, their use as...
- Patent number 4,826,634
- Issue date May 2, 1989
- Bayer Aktiengesellschaft
- Bernd Baasner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Person

Patents Grantslast 30 patents

Process for the manufacture of bis(4-hydroxyaryl)alkanes

(Co)polycarbonates stabilized against .gamma.-radiation

(Co) polycarbonates stabilised against .gamma.-radiation

Bisphenol synthesis on modified ion-exchange resins using specially...

Flame-resistant polycarbonate moulding-compositions

Process for the continuous production of high purity bisphenol A

Process of regenerating sulfonic acid cation exchange resins with a...

Optimized ion exchanger beds for the synthesis of bisphenol A

Process for the production of bisphenols

Process for the purification of bisphenols

Process for the preparation of substituted cycloalkylidene bisphenols

Polycarbonate from bi(tetrahydrofuran)di phenol

Process for the production of carboxylic acid esters

Moulding compounds of polycarbonate mixtures having a high disperse...

Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modif...

Photosensitive recording material suited for use in electrophotogra...

Use of mixtures of polycarbonates and styrene polymers as substrate...

Vinyl copolymers with grafted-on polycarbonate chains, their produc...

Process for the production of polycarbonate solutions

Fluorinated alkylamidosulphonates, their preparation, their use as...