Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330951 | Silica granules for thermal treatment | Mareike GIESSELER, Nina MÜHLIG, Alexander Lygin, Wolfgang AUL, Tobias RENGER +1 more | 2025-06-17 |
| 11242259 | Method for producing silicic acid with variable thickening | Christian Schulze Isfort, Helmut Roth, Andreas Hille, Kai Schumacher | 2022-02-08 |
| 10280088 | Method for producing silicic acid with variable thickening | Christian Schulze Isfort, Helmut Roth, Andreas Hille, Kai Schumacher | 2019-05-07 |
| 8535633 | Process for the production of doped metal oxide particles | Kai Schumacher, Helmut Roth, Harald Alff, Matthias Rochnia | 2013-09-17 |
| 8071070 | Titanium dioxide having a variable sintering stability | Christian Schulze-Isfort, Kai Schumacher, Nina Schuhardt, Oswin Klotz | 2011-12-06 |
| 8062622 | Titanium dioxide having increased sintering activity | Christian Schulze-Isfort, Oswin Klotz, Uwe Diener, Kai Schumacher | 2011-11-22 |
| 7862797 | Mixed oxide powder comprising alkali metal oxide, and silicone rubber comprising this powder | Kai Schumacher, Helmut Roth, Helmut Mangold, Mario Scholz | 2011-01-04 |
| 7749322 | Aluminium oxide powder produced by flame hydrolysis and having a large surface area | Kai Schumacher, Roland Schilling, Christoph Batz-Sohn, Martin Moerters | 2010-07-06 |
| 6872402 | Bactericidal silicon dioxide doped with silver | Helmut Mangold | 2005-03-29 |
| 6695907 | Dispersions containing pyrogenic oxides | Thomas Scharfe, Helmut Mangold | 2004-02-24 |
| 6613300 | Doped, pyrogenically prepared oxides | Helmut Mangold, Stipan Katusic, Karlheinz Janzon | 2003-09-02 |
| 6455455 | Silicon-aluminum mixed oxide | Klaus Deller, Dieter Kerner, Helmut Mangold | 2002-09-24 |
| 6423331 | Bactericidal silicon dioxide doped with silver | Helmut Mangold | 2002-07-23 |
| 6328944 | Doped, pyrogenically prepared oxides | Helmut Mangold, Stipan Katusic, Karlheinz Janzon | 2001-12-11 |
| 6127429 | Ultrasonic atomization for production of aerosols | Stipan Katusic, Helmut Mangold | 2000-10-03 |