Frieder Heydenreich

Person

Dusseldorf, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Bis(4-hydroxyaryl)alkanes
- Patent number 6,919,487
- Issue date Jul 19, 2005
- Bayer Aktiengesellschaft
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bisphenol phenol adducts
- Patent number 6,906,227
- Issue date Jun 14, 2005
- Bayer Aktiengesellschaft
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing bisphenols
- Patent number 6,828,465
- Issue date Dec 7, 2004
- Bayer Aktiengesellschaft
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substance mixture containing bisphenol A
- Patent number 6,774,268
- Issue date Aug 10, 2004
- Bayer Aktiengesellschaft
- Michael Bödiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Device for mixing and reacting multiphase gaseous and liquid mixtur...
- Patent number 6,726,354
- Issue date Apr 27, 2004
- Bayer Aktiengesellschaft
- Werner Breuer
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method for conditioning ion exchangers
- Patent number 6,723,881
- Issue date Apr 20, 2004
- Bayer Aktiengesellschaft
- Michael Bödiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bisphenol production
- Patent number 6,723,885
- Issue date Apr 20, 2004
- Bayer Aktiengesellschaft
- Frieder Heydenreich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the production of bisphenol-a
- Patent number 6,710,211
- Issue date Mar 23, 2004
- Bayer Aktiengesellschaft
- Frieder Heydenreich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Device for exchanging a die plate of a prilling tower and method fo...
- Patent number 6,695,991
- Issue date Feb 24, 2004
- Bayer Aktiengesellschaft
- Rolf Lanze
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and device for producing bisphenol a prills and bisphenol a...
- Patent number 6,689,464
- Issue date Feb 10, 2004
- Bayer Aktiengesellschaft
- Rolf Lanze
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycarbonate containers
- Patent number 6,682,794
- Issue date Jan 27, 2004
- Bayer Aktiengesellschaft
- Klaus Horn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluidised bisphenol dust
- Patent number 6,683,223
- Issue date Jan 27, 2004
- Bayer Aktiengesellschaft
- Michael Bödiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl...
- Patent number 6,590,128
- Issue date Jul 8, 2003
- Bayer Aktiengesellschaft
- Michael Bödiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the removal of dissolved oxygen from phenol
- Patent number 6,417,318
- Issue date Jul 9, 2002
- Bayer Aktiengesellschaft
- Frieder Heydenreich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing bisphenol-A
- Patent number 6,414,198
- Issue date Jul 2, 2002
- Bayer Aktiengesellschaft
- Rolf Lanze
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycarbonates with a low yellowness index
- Patent number 6,395,864
- Issue date May 28, 2002
- Bayer Aktiengesellschaft
- Steffen Kühling
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for the production of bis(4-hydroxyaryl)alkanes
- Patent number 6,384,288
- Issue date May 7, 2002
- Bayer Aktiengesellschaft
- Steffen Kühling
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing dis(4-hydroxyaryl) alkanes
- Patent number 6,316,678
- Issue date Nov 13, 2001
- Bayer Aktiengesellschaft
- Steffen Kühling
- 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
Catalyst for the preparation of bisphenols
- Patent number 4,369,293
- Issue date Jan 18, 1983
- Bayer Aktiengesellschaft
- Frieder Heydenreich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamide moulding compounds having high impact strength
- Patent number 4,362,846
- Issue date Dec 7, 1982
- Bayer Aktiengesellschaft
- Helmut Korber
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamides containing oxidized polyethylene
- Patent number 4,293,662
- Issue date Oct 6, 1981
- Bayer Aktiengesellschaft
- Frieder Heydenreich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for producing bisphenols
- Publication number 20040030195
- Publication date Feb 12, 2004
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Fluidised bisphenol dust
- Publication number 20030144560
- Publication date Jul 31, 2003
- Michael Bodiger
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Substance mixture containing bisphenol a
- Publication number 20030096939
- Publication date May 22, 2003
- Michael Bodiger
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Bisphenol phenol adducts
- Publication number 20030038094
- Publication date Feb 27, 2003
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Bis(4-hydroxyaryl) alkanes
- Publication number 20020183562
- Publication date Dec 5, 2002
- Rainer Neumann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the production of bis(4-hydroxyaryl)-alkanes
- Publication number 20020055661
- Publication date May 9, 2002
- Steffen Kiihling
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR THE REMOVAL OF DISSOLVED OXYGEN FROM PHENOL
- Publication number 20020045726
- Publication date Apr 18, 2002
- Frieder Heydenreich
- C07 - ORGANIC CHEMISTRY

Frieder Heydenreich

Person

Patents Grantslast 30 patents

Bis(4-hydroxyaryl)alkanes

Bisphenol phenol adducts

Method for producing bisphenols

Substance mixture containing bisphenol A

Device for mixing and reacting multiphase gaseous and liquid mixtur...

Method for conditioning ion exchangers

Bisphenol production

Method for the production of bisphenol-a

Device for exchanging a die plate of a prilling tower and method fo...

Method and device for producing bisphenol a prills and bisphenol a...

Polycarbonate containers

Fluidised bisphenol dust

Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl...

Process for the removal of dissolved oxygen from phenol

Method for producing bisphenol-A

Polycarbonates with a low yellowness index

Method for the production of bis(4-hydroxyaryl)alkanes

Method for producing dis(4-hydroxyaryl) alkanes

Process for preparing bis-(4-hydroxyaryl) alkanes

Catalyst for the preparation of bisphenols

Polyamide moulding compounds having high impact strength

Polyamides containing oxidized polyethylene

Patents Applicationslast 30 patents

Method for producing bisphenols

Fluidised bisphenol dust

Substance mixture containing bisphenol a

Bisphenol phenol adducts

Bis(4-hydroxyaryl) alkanes

Method for the production of bis(4-hydroxyaryl)-alkanes

PROCESS FOR THE REMOVAL OF DISSOLVED OXYGEN FROM PHENOL