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Werner Hartmann
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Babenhausen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Zirconium dioxide powder, method of its production and use
Patent number
6,524,548
Issue date
Feb 25, 2003
Degussa AG
Helmut Mangold
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Titanium dioxide powder which contains iron oxide
Patent number
6,406,532
Issue date
Jun 18, 2002
Degussa Aktiengesellschaft
Werner Hartmann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Spherical pigments, process for producing them and use thereof
Patent number
6,074,754
Issue date
Jun 13, 2000
Degussa Aktiengesellschaft
Hauke Jacobsen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Surface-modified, pyrogenically produced mixed oxides, method of th...
Patent number
6,022,404
Issue date
Feb 8, 2000
Degussa Aktiengesellschaft
Manfred Ettlinger
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Silanized silica
Patent number
5,959,005
Issue date
Sep 28, 1999
Degussa-Huls Aktiengesellschaft
Werner Hartmann
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Cerium oxide-metal/metalloid oxide mixture
Patent number
5,897,675
Issue date
Apr 27, 1999
Degussa Aktiengesellschaft
Helmut Mangold
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for producing precious metal powders
Patent number
5,852,768
Issue date
Dec 22, 1998
Degussa Aktiengesellschaft
Hauke Jacobsen
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Granules based on pyrogenically prepared silicon dioxide, methods f...
Patent number
5,776,240
Issue date
Jul 7, 1998
Degussa Aktiengesellschaft
Klaus Deller
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Flame-hydrolytically produced titanium dioxide mixed oxide, method...
Patent number
5,762,914
Issue date
Jun 9, 1998
DEGUSSA
Werner Hartmann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Flame-hydrolytically produced titanium dioxide mixed oxide method o...
Patent number
5,672,330
Issue date
Sep 30, 1997
Degussa Aktiengesellschaft
Werner Hartmann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Flame-hydrolytically produced titanium dioxide mixed oxide, method...
Patent number
5,451,390
Issue date
Sep 19, 1995
Degussa Aktiengesellschaft
Werner Hartmann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon-aluminum mixed oxide
Patent number
5,424,258
Issue date
Jun 13, 1995
Degussa Aktiengesellschaft
Helmut Mangold
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon-aluminum mixed oxide
Patent number
5,380,687
Issue date
Jan 10, 1995
Degussa Aktiengesellschaft
Helmut Mangold
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Titanium dioxide compacts, method of their production and a catalys...
Patent number
5,120,701
Issue date
Jun 9, 1992
Degussa
Reinhold Brand
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Titanium dioxide powder which contains iron oxide
Publication number
20030037705
Publication date
Feb 27, 2003
Dehussa Aktiengesellschaft
Werner Hartmann
B82 - NANO-TECHNOLOGY
Information
Patent Application
Titanium dioxide powder which contains iron oxide
Publication number
20020121227
Publication date
Sep 5, 2002
Degussa Ag
Werner Hartmann
B82 - NANO-TECHNOLOGY