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Gottfried Zaby
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Leverkusen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for the transport and storage of phenol
Patent number
5,921,089
Issue date
Jul 13, 1999
Phenolchemie GmbH & Co. KG
Werner Kleinloh
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the continuous production of polyurethane and polyureth...
Patent number
5,908,913
Issue date
Jun 1, 1999
Bayer Aktiengesellschaft
Ernst Orthmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for the continuous production of aryl carbonates
Patent number
5,900,501
Issue date
May 4, 1999
Bayer Aktiengesellschaft
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of polycarbonate agglomerate
Patent number
5,852,157
Issue date
Dec 22, 1998
Bayer Aktiengesellschaft
Gottfried Zaby
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the isolation of partially crystalline polycarbonate po...
Patent number
5,830,977
Issue date
Nov 3, 1998
Bayer Aktiengesellschaft
Claus Wulff
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous production of aryl carbonates
Patent number
5,831,111
Issue date
Nov 3, 1998
Bayer AG
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for drying polymeric powders and polymeric agglomerates
Patent number
5,786,445
Issue date
Jul 28, 1998
Bayer Aktiengesellschaft
Claus Wulff
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Two-step process for the production of thermoplastic polycarbonate
Patent number
5,767,224
Issue date
Jun 16, 1998
Bayer Aktiengesellschaft
Steffen Kuhling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing thermoplastic polycarbonate
Patent number
5,756,641
Issue date
May 26, 1998
Bayer Aktiengesellschaft
Steffen Kuhling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing diaryl carbonates and the polycarbonates obta...
Patent number
5,739,258
Issue date
Apr 14, 1998
Bayer AG
Gottfried Zaby
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of carbonates as demoulding agents for thermoplastic polycarbon...
Patent number
5,726,228
Issue date
Mar 10, 1998
Bayer Aktiengesellschaft
Ralf Kaufmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous production of diaryl carbonates
Patent number
5,710,310
Issue date
Jan 20, 1998
Bayer Aktiengesellschaft
Pieter Ooms
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing thermoplastic granulated polymer material fro...
Patent number
5,684,087
Issue date
Nov 4, 1997
Bayer Aktiengesellschaft
Claus Wulff
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Two-stage process for the manufacture of thermoplastic polycarbonate
Patent number
5,652,313
Issue date
Jul 29, 1997
Bayer Aktiengesellschaft
Steffen Kuhling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of thermoplastic polycarbonate
Patent number
5,652,324
Issue date
Jul 29, 1997
Bayer Aktiengesellschaft
Uwe Hucks
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous production of polyurethane and polyureth...
Patent number
5,360,885
Issue date
Nov 1, 1994
Bayer Aktiengesellschaft
Ernst Orthmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for the continuous preparation of monoisocyanates or polyis...
Patent number
5,117,048
Issue date
May 26, 1992
Bayer Aktiengesellschaft
Gottfried Zaby
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the continuous production of mono- and polyisocyanates
Patent number
4,851,570
Issue date
Jul 25, 1989
Bayer Aktiengesellschaft
Gottfried Zaby
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intumescent compositions
Patent number
4,380,593
Issue date
Apr 19, 1983
Bayer Aktiengesellschaft
Wulf von Bonin
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...