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Frank Wehowsky
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Burgkirchen, DE
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last 30 patents
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Patent Grant
Saturated fluoroalkylamines and their derivatives, and mixtures the...
Patent number
5,648,528
Issue date
Jul 15, 1997
Hoechst Aktiengesellschaft
Gunter Prossel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Saturated fluoroalkylamines and their derivatives, and mixtures the...
Patent number
5,648,527
Issue date
Jul 15, 1997
Hoechst Aktiengesellschaft
Gunter Prossel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Surface-active compounds having a perfluoroalkyl group and a nitrog...
Patent number
5,103,048
Issue date
Apr 7, 1992
Hoechst Aktiengesellschaft
Wolfgang Knaup
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of colorless, intensely fluorinated ammonium and iminium compou...
Patent number
5,069,994
Issue date
Dec 3, 1991
Hoechst Aktiengesellschaft
Jorg Gitzel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Ammonium and iminium compounds
Patent number
5,053,537
Issue date
Oct 1, 1991
Hoechst Aktiengesellschaft
Jorg Gitzel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Urethane made from aliphatic fluorinated alcohols, isocyanates and...
Patent number
4,960,543
Issue date
Oct 2, 1990
Hoechst Aktiengesellschaft
Frank Wehowsky
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Urethanes containing fluorine and polysiloxane, process for their p...
Patent number
4,873,306
Issue date
Oct 10, 1989
Hoechst Aktiengesellschaft
Frank Wehowsky
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Urethanes composed of aliphatic fluoroalcohols, isocyanates and aro...
Patent number
4,782,175
Issue date
Nov 1, 1988
Hoechst Aktiengesellschaft
Frank Wehowsky
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Aqueous anionic dispersion
Patent number
4,775,488
Issue date
Oct 4, 1988
Cassella Aktiengesellschaft
Karl Hintermeier
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Urethanes which contain perfluoroalkyl groups, epichlorohydrin grou...
Patent number
4,766,234
Issue date
Aug 23, 1988
Hoechst Aktiengesellschaft
Frank Wehowsky
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Urethanes containing perfluoroalkyl and epichlorohydrin groups
Patent number
4,709,074
Issue date
Nov 24, 1987
Hoechst Aktiengesellschaft
Heinrich Bathelt
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...