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Berthold Trageser
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Freigericht, DE
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Patents Grants
last 30 patents
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Patent Grant
Dispersion containing pyrogenically manufactured abrasive particles...
Patent number
6,761,747
Issue date
Jul 13, 2004
Degussa AG
Heiko Gottfried
B24 - GRINDING POLISHING
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Patent Grant
Superparamagnetic oxidic particles, processes for their production...
Patent number
6,746,767
Issue date
Jun 8, 2004
Degussa AG
Heiko Gottfried
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Dispersion containing pyrogenically manufactured abrasive particles...
Publication number
20030100187
Publication date
May 29, 2003
Degussa AG
Heiko Gottfried
B24 - GRINDING POLISHING
Information
Patent Application
Superparamagnetic oxidic particles, processes for their production...
Publication number
20030059603
Publication date
Mar 27, 2003
Degussa AG
Heiko Gottfried
B82 - NANO-TECHNOLOGY