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Francis Bentz
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Cologne, DE
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last 30 patents
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Patent Grant
Process of using a semi-permeable membrane of acrylonitrile copolymers
Patent number
4,252,652
Issue date
Feb 24, 1981
Bayer Aktiengesellschaft
Klaus Elfert
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyalkylene oxide-containing urethane polyols with sulphonic acid...
Patent number
4,245,110
Issue date
Jan 13, 1981
Bayer Aktiengesellschaft
Helmut Engelhard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Semipermeable membranes of heterocyclic copolyamides
Patent number
4,221,903
Issue date
Sep 9, 1980
Bayer Aktiengesellschaft
Klaus Elfert
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Semipermeable membranes of copolyamides
Patent number
4,217,227
Issue date
Aug 12, 1980
Bayer Aktiengesellschaft
Klaus Elfert
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Dihydroxy carbamates containing sulphonic acid groups
Patent number
4,166,186
Issue date
Aug 28, 1979
Bayer Aktiengesellschaft
Gerhard D. Wolf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antistatic polyamide compositions with polyalkyleneglycol ether hav...
Patent number
4,163,088
Issue date
Jul 31, 1979
Bayer Aktiengesellschaft
Hans E. Kunzel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Stabilization of crosslinkable polymers
Patent number
4,145,500
Issue date
Mar 20, 1979
Bayer Aktiengesellschaft
Theo Neukam
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyether urethanes as antistatic additives in polyamide compositions
Patent number
4,111,920
Issue date
Sep 5, 1978
Bayer Aktiengesellschaft
Hans Egon Kunzel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for dyeing wet-spun aromatic polyamides in gel form
Patent number
4,108,936
Issue date
Aug 22, 1978
Bayer Aktiengesellschaft
Gerhard Dieter Wolf
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...