Ralf Pakull

Person

Pulheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the purification of polycarbonate and polyester carbona...
- Patent number RE36432
- Issue date Dec 7, 1999
- Bayer Aktiengesellschaft
- Gerhard Fennhoff
- 528 - Synthetic resins or natural rubbers
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
Use of special polycarbonates for the production of optical articles
- Patent number 5,545,710
- Issue date Aug 13, 1996
- Bayer Aktiengesellschaft
- Wilfried Haese
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the purification of polycarbonate and polyester carbona...
- Patent number 5,420,241
- Issue date May 30, 1995
- Bayer Aktiengesellschaft
- Gerhard Fennhoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of preparing aliphatic-aromatic polycarbonates
- Patent number 5,410,014
- Issue date Apr 25, 1995
- Bayer Aktiengesellschaft
- Wilfried Haese
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of aliphatic-aromatic polycarbonates
- Patent number 5,408,027
- Issue date Apr 18, 1995
- Bayer Aktiengesellschaft
- Wilfried Haese
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of preparing polycarbonates and polyester carbonates
- Patent number 5,357,028
- Issue date Oct 18, 1994
- Bayer Aktiengesellschaft
- Ralf Pakull
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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 production of solventless polycarbonate
- Patent number 5,191,001
- Issue date Mar 2, 1993
- Bayer Aktiengesellschaft
- Steffen Kuhlig
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stiff-chain polyheterocycles having improved solubility, a process...
- Patent number 5,134,219
- Issue date Jul 28, 1992
- Bayer Aktiengesellschaft
- Hans R. Kricheldorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Soluble polyaromatic compounds
- Patent number 5,102,971
- Issue date Apr 7, 1992
- Bayer Aktiengesellschaft
- Thomas Himmler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Copolycarbonate from mixture of polyarylene diol
- Patent number 5,084,550
- Issue date Jan 28, 1992
- Bayer Aktiengesellschaft
- Ralf Pakull
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermotropic polyesters, a process for their production and their u...
- Patent number 4,985,532
- Issue date Jan 15, 1991
- Bayer Aktiengesellschaft
- Ralf Pakull
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermotropic aromatic polyesters, a process for their production an...
- Patent number 4,931,534
- Issue date Jun 5, 1990
- Bayer Aktiengesellschaft
- Ralf Pakull
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermotropic polyesterimide from N-carboxyalkylene trimellitimide h...
- Patent number 4,861,857
- Issue date Aug 29, 1989
- Bayer Aktiengesellschaft
- Hans-Rytger Kricheldorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyimide esters of trimellitic acid
- Patent number 4,631,333
- Issue date Dec 23, 1986
- Bayer Aktiengesellschaft
- Hans R. Kricheldorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Computer system and method for multilingual associative searching
- Publication number 20050086214
- Publication date Apr 21, 2005
- Bayer MaterialScience AG
- Eric Seewald
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and computer system for project portfolio management
- Publication number 20040254959
- Publication date Dec 16, 2004
- Karsten Dierksen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Computer system and method for the search statistical evaluation an...
- Publication number 20030191780
- Publication date Oct 9, 2003
- Georg Heger
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Computer system for knowledge management
- Publication number 20030191744
- Publication date Oct 9, 2003
- Torsten Derr
- G06 - COMPUTING CALCULATING COUNTING

Ralf Pakull

Person

Patents Grantslast 30 patents

Process for the purification of polycarbonate and polyester carbona...

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

Use of special polycarbonates for the production of optical articles

Process for the purification of polycarbonate and polyester carbona...

Method of preparing aliphatic-aromatic polycarbonates

Process for the production of aliphatic-aromatic polycarbonates

Method of preparing polycarbonates and polyester carbonates

Process for the production of bisphenols

Process for the production of solventless polycarbonate

Stiff-chain polyheterocycles having improved solubility, a process...

Soluble polyaromatic compounds

Copolycarbonate from mixture of polyarylene diol

Thermotropic polyesters, a process for their production and their u...

Thermotropic aromatic polyesters, a process for their production an...

Thermotropic polyesterimide from N-carboxyalkylene trimellitimide h...

Process for the preparation of polyimide esters of trimellitic acid

Patents Applicationslast 30 patents

Computer system and method for multilingual associative searching

Method and computer system for project portfolio management

Computer system and method for the search statistical evaluation an...

Computer system for knowledge management