Gerd Fengler

Person

Krefeld-Traar, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for continuous production of dihydroxydiarylalkanes
- Patent number 6,307,111
- Issue date Oct 23, 2001
- Bayer Aktiengesellschaft
- Gerhard Fennhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for continuous production of dihydroxydiphenylalkanes
- Patent number 6,294,702
- Issue date Sep 25, 2001
- Bayer Aktiengesellschaft
- Gerhard Fennhof
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing bis-(4-hydroxyaryl) alkanes
- Patent number 6,211,417
- Issue date Apr 3, 2001
- Bayer Aktiengesellschaft
- Gerd Fengler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for processing mother liquors from the production of bisphenol
- Patent number 6,191,316
- Issue date Feb 20, 2001
- Bayer Aktiengesellschaft
- Gerhard Fennhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aliphatic carbonates having a six-me...
- Patent number 5,861,107
- Issue date Jan 19, 1999
- Bayer Aktiengesellschaft
- Hans-Josef Buysch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilized, flame resistant polycarbonate moulding compounds
- Patent number 5,399,600
- Issue date Mar 21, 1995
- Bayer AG
- Hans-Josef Buysch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mixtures of polyalkylene terephthalates, new polycarbonates and/or...
- Patent number 5,310,793
- Issue date May 10, 1994
- Bayer Aktiengesellschaft
- Dieter Freitag
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Special dihydroxydiphenyl bicycloalkanes, their production and thei...
- Patent number 5,276,213
- Issue date Jan 4, 1994
- Bayer Aktiengesellschaft
- Volker Serini
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermoplastic graft polymers containing oxetanyl groups
- Patent number 5,252,674
- Issue date Oct 12, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer blends of polyamides and polymers containing sulfonamide st...
- Patent number 5,252,672
- Issue date Oct 12, 1993
- Bayer Aktiengesellschaft
- Georg Heger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymers containing sulfonamide units as compatibilizers for polyam...
- Patent number 5,219,934
- Issue date Jun 15, 1993
- Bayer Aktiengesellschaft
- Georg Heger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Highly branched polyphosphonates
- Patent number 5,216,113
- Issue date Jun 1, 1993
- Bayer Aktiengesellschaft
- Wolfgang-Hans Schulz-Schlitte
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate from special dihydroxydiphenyl bicycloalkane
- Patent number 5,212,280
- Issue date May 18, 1993
- Bayer Aktiengesellschaft
- Volker Serini
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alloys of thermoplastic polymers containing oxetanyl groups
- Patent number 5,194,497
- Issue date Mar 16, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Molding compounds containing oxetanyl groups
- Patent number 5,155,168
- Issue date Oct 13, 1992
- Bayer Aktiengesellschaft
- Holger Lutjens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Moulding compounds of polyamides and graft polymers containing tert...
- Patent number 5,122,571
- Issue date Jun 16, 1992
- Bayer Aktiengesellschaft
- Uwe Westeppe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Two-stage process for the production of polycarbonates based on spe...
- Patent number 5,104,963
- Issue date Apr 14, 1992
- Bayer Aktiengesellschaft
- Uwe Westeppe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
1H-pyrido-(2,3-b) (1,4)-thiazines
- Patent number 4,861,878
- Issue date Aug 29, 1989
- Bayer Aktiengesellschaft
- Gerd Fengler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-H-pyrido-[3,2-b][1,4]-thiazine
- Patent number 4,784,997
- Issue date Nov 15, 1988
- Bayer Aktiengesellschaft
- Alexander Klausener
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4H-1,4-Benzothiazine derivatives
- Patent number 4,548,934
- Issue date Oct 22, 1985
- Bayer Aktiengesellschaft
- Gerd Fengler
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Sulphinyl- and sulphonyl-azacycloheptan-2-ones, and their use as fe...
- Patent number 4,468,392
- Issue date Aug 28, 1984
- Bayer Aktiengesellschaft
- Gerd Fengler
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Process for the preparation of tetramethylated bisphenol polycarbon...
- Patent number 4,316,980
- Issue date Feb 23, 1982
- Bayer Aktiengesellschaft
- Karsten Idel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Gerd Fengler

Person

Patents Grantslast 30 patents

Method for continuous production of dihydroxydiarylalkanes

Method for continuous production of dihydroxydiphenylalkanes

Process for preparing bis-(4-hydroxyaryl) alkanes

Method for processing mother liquors from the production of bisphenol

Process for the preparation of aliphatic carbonates having a six-me...

Stabilized, flame resistant polycarbonate moulding compounds

Mixtures of polyalkylene terephthalates, new polycarbonates and/or...

Special dihydroxydiphenyl bicycloalkanes, their production and thei...

Thermoplastic graft polymers containing oxetanyl groups

Polymer blends of polyamides and polymers containing sulfonamide st...

Polymers containing sulfonamide units as compatibilizers for polyam...

Highly branched polyphosphonates

Polycarbonate from special dihydroxydiphenyl bicycloalkane

Alloys of thermoplastic polymers containing oxetanyl groups

Molding compounds containing oxetanyl groups

Moulding compounds of polyamides and graft polymers containing tert...

Two-stage process for the production of polycarbonates based on spe...

1H-pyrido-(2,3-b) (1,4)-thiazines

1-H-pyrido-[3,2-b][1,4]-thiazine

4H-1,4-Benzothiazine derivatives

Sulphinyl- and sulphonyl-azacycloheptan-2-ones, and their use as fe...

Process for the preparation of tetramethylated bisphenol polycarbon...