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Rolf-Michael Jansen
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Kelkheim, DE
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last 30 patents
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Patent Grant
Composite foams, processes for their preparation and their use
Patent number
6,040,375
Issue date
Mar 21, 2000
Hoechst AG
Klaus-Jurgen Behme
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for the subcritical drying of aerogels
Patent number
5,811,031
Issue date
Sep 22, 1998
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Xerogels and process for their preparation
Patent number
5,795,556
Issue date
Aug 18, 1998
Hoechst AG
Rolf-Michael Jansen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing aerogels
Patent number
5,759,506
Issue date
Jun 2, 1998
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for the subcritical drying of aerogels
Patent number
5,705,535
Issue date
Jan 6, 1998
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of xerogels
Patent number
5,647,962
Issue date
Jul 15, 1997
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for removing olefinic impurities from 2H-heptafluoropropane...
Patent number
5,621,152
Issue date
Apr 15, 1997
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of hydrofluorocarbons
Patent number
5,510,545
Issue date
Apr 23, 1996
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the removal of olefinic impurities from 1,1,1,2,3,3,3-h...
Patent number
5,475,169
Issue date
Dec 12, 1995
Hoechst AG
Peter Hopp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for disposing of halons or halon-containing fluorocarbons o...
Patent number
5,457,267
Issue date
Oct 10, 1995
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the purification of chlorofluorohydrocarbons
Patent number
5,233,107
Issue date
Aug 3, 1993
Hoechst Aktiengesellschaft
Rolf-Michael Jansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the removal of olefinic impurities from hydrochlorofluo...
Patent number
5,189,230
Issue date
Feb 23, 1993
Hoechst Aktiengesellschaft
Peter Hopp
C07 - ORGANIC CHEMISTRY