Helmut Reinhardt

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Rodenkirchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Precipitated silicas and process for their production and use
- Patent number 5,110,574
- Issue date May 5, 1992
- Degussa Aktiengesellschaft
- Helmut Reinhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Iron blue pigment, process for making the same and use
- Patent number 4,378,995
- Issue date Apr 5, 1983
- Degussa Aktiengesellschaft
- Everhard Gratzfeld
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Iron blue pigment, process for making the same and use
- Patent number 4,368,075
- Issue date Jan 11, 1983
- Degussa Aktiengesellschaft
- Everhard Gratzfeld
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus for preparation of a sprayable precipitated silicic acid...
- Patent number 4,238,322
- Issue date Dec 9, 1980
- Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
- Bernd Brandt
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the production of finely divided silicic acid by spray...
- Patent number 4,224,295
- Issue date Sep 23, 1980
- Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
- Bernd Brandt
- C01 - INORGANIC CHEMISTRY