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Axel Walch
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Frankfurt, DE
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last 30 patents
Information
Patent Grant
Polyaspartamide derivatives as adsordents for bile acids, polyaspar...
Patent number
6,036,948
Issue date
Mar 14, 2000
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Methods for preparing carbohydrate-containing hydrophilic polymers
Patent number
6,037,467
Issue date
Mar 14, 2000
Glycorex AB
Wilhelm Stahl
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polyaspartamide derivatives as adsorbents for bile acids, polyaspar...
Patent number
5,714,138
Issue date
Feb 3, 1998
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Pharmacological composition containing polyelectrolyte complexes in...
Patent number
5,700,459
Issue date
Dec 23, 1997
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Nanoparticles containing an active substance and a ketalized polyta...
Patent number
5,674,531
Issue date
Oct 7, 1997
Hoechst Aktiengesellschaft
Michael Ahlers
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Crosslinked nitrogen-containing vinyl copolymers processes for thei...
Patent number
5,631,326
Issue date
May 20, 1997
Hoechst Aktiengesellschaft
Michael Ahlers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycondensates which contain tartaric acid derivatives, processes...
Patent number
5,613,494
Issue date
Mar 25, 1997
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polycondensates which contain tartaric acid derivatives, processes...
Patent number
5,505,784
Issue date
Apr 9, 1996
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Carbohydrate-containing polymers, their preparation and use
Patent number
5,470,843
Issue date
Nov 28, 1995
Hoechst Aktiengesellschaft
Wilhelm Stahl
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polyvinylamine derivatives having hydrophilic centers, processes fo...
Patent number
5,430,110
Issue date
Jul 4, 1995
Hoechst Aktiengesellschaft
Michael Ahlers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crosslinked, nitrogen-containing vinyl copolymers, processes for th...
Patent number
5,428,112
Issue date
Jun 27, 1995
Hoechst Aktiengesellschaft
Michael Ahlers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycondensates which contain tartaric acid derivatives, processes...
Patent number
5,391,696
Issue date
Feb 21, 1995
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Poly amino dicarboxylic acid-co-anhydro amino dicarboxylic acid der...
Patent number
5,317,065
Issue date
May 31, 1994
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Biologically degradable polyamino dicarboxylic acid--CO--anhydro am...
Patent number
5,229,469
Issue date
Jul 20, 1993
Hoechst Aktiengesellschaft
Volker Krone
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Ultrasonic contrast agents, processes for their preparation and the...
Patent number
5,205,287
Issue date
Apr 27, 1993
Hoechst Aktiengesellschaft
Raimund Erbel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Ultrasonic contrast agents, processes for their preparation and the...
Patent number
5,190,982
Issue date
Mar 2, 1993
Hoechst Aktiengesellschaft
Raimund Erbel
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Ultrasonic contrast agents, processes for their preparation and the...
Patent number
5,137,928
Issue date
Aug 11, 1992
Hoechst Aktiengesellschaft
Raimund Erbel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Immobilization of an isethiacyanate of a cofactor on a polymer
Patent number
5,106,740
Issue date
Apr 21, 1992
Hoechst Aktiengesellschaft
Hubert Bader
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Microencapsulation of biologically active material
Patent number
5,100,673
Issue date
Mar 31, 1992
Hoechst Aktiengesellschaft
Hebert Bader
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Biodegradable poly(hydroxyalkyl)amino dicarboxylic acid) derivative...
Patent number
5,041,291
Issue date
Aug 20, 1991
Hoechst Aktiengesellschaft
Hubert Bader
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for preparing an asymmetrical macroporous membrane polymer
Patent number
5,009,824
Issue date
Apr 23, 1991
Hoechst Aktiengesellschaft
Axel Walch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Biodegradable poly(hydroxyalkyl)amino dicarboxylic acid) derivative...
Patent number
4,906,473
Issue date
Mar 6, 1990
Hoechst Aktiengesellschaft
Hubert Bader
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Biologically degradable polyamide for depot preparations having con...
Patent number
4,835,248
Issue date
May 30, 1989
Hoechst Aktiengesellschaft
Hubert Bader
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Macroporous asymmetrical hydrophilic membrane made of a synthetic p...
Patent number
4,720,343
Issue date
Jan 19, 1988
Hoechst Aktiengesellschaft
Axel Walch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Shaped articles which are composed of a copolymer containing fluori...
Patent number
4,557,955
Issue date
Dec 10, 1985
Hoechst Aktiengesellschaft
Axel Walch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Open-cell/microporous molded article
Patent number
4,524,155
Issue date
Jun 18, 1985
Hoechst Aktiengesellschaft
Axel Walch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Open-cell/microporous molded article
Patent number
4,499,211
Issue date
Feb 12, 1985
Hoechst Aktiengesellschaft
Axel Walch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hemodialysis membrane and process and apparatus for using same in h...
Patent number
4,354,938
Issue date
Oct 19, 1982
Hoechst Aktiengesellschaft
Axel Walch
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Permselective membrane and use
Patent number
4,229,291
Issue date
Oct 21, 1980
Hoechst Aktiengesellschaft
Axel Walch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Membrane unit and apparatus for removing metabolite contaminants fr...
Patent number
4,206,050
Issue date
Jun 3, 1980
Hoechst Aktiengesellschaft
Axel Walch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE