Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7071257 | Precipitated silicas | Udo Gorl, Robert Kuhlmann, Ralf Rausch | 2006-07-04 |
| 6977065 | Precipitated silicas | Udo Gorl, Robert Kuhlmann, Ralf Rausch | 2005-12-20 |
| 6214383 | Precipitated silicas which contain an active substance | Robert Kuhlmann, Matthias Neumuller, Karin Otto, Ralf Rausch, Klaus Thomas | 2001-04-10 |
| 5925708 | Precipitated silicas | Udo Gorl, Robert Kuhlmann, Ralf Rausch | 1999-07-20 |
| 5871867 | Precipitated silica | Ralf Rausch, Robert Kuhlmann, Guenter Tuerk, Karl Meier, Walter Meon | 1999-02-16 |
| 5859117 | Precipitated silicas, a process for their preparation and their use in vulcanizable rubber mixtures | Udo Goerl, Andrea Hunsche, Robert Kuhlmann, Mustafa Siray | 1999-01-12 |
| 5846506 | Precipitated silicas | Udo Gorl, Robert Kuhlmann, Ralf Rausch | 1998-12-08 |
| 5705137 | Precipitated silicas, a process for their preparation and their use in vulcanizable rubber mixtures | Udo Goerl, Andrea Hunsche, Robert Kuhlmann, Mustafa Siray | 1998-01-06 |
| 5484581 | Process for the production of precipitated silica | Robert Kuhlmann, Mattias Neumueller, Karin Otto, Ralf Rausch | 1996-01-16 |
| 5256196 | Precipitated silica paste | Marian Chjonowski, Werner Nagel, Karl Meier, Wolfgang Leonhardt | 1993-10-26 |
| 4495167 | Precipitated silicas having high structure and process for their preparation | Peter Nauroth, Gunter Turk | 1985-01-22 |
| 4308074 | Precipitated silicic acid, method and compositions containing same | Peter Nauroth, Robert Kuhlmann, Rudolf Bode, Arthur Reisert, Harald Buhler +1 more | 1981-12-29 |
| 4273589 | Precipitated silicic acid, method and compositions containing same | Peter Nauroth, Robert Kuhlmann, Rudolf Bode, Arthur Reisert | 1981-06-16 |
| 4208316 | Hydrophobic precipitated silicic acid and compositions containing same | Peter Nauroth, Robert Kuhlmann, Rudolf Bode, Arthur Reisert, Harald Buhler +1 more | 1980-06-17 |