Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5110574 | Precipitated silicas and process for their production and use | Helmut Reinhardt, Adam Becker, Robert Kuhlmann | 1992-05-05 |
| 4857289 | Process for preparing precipitated silica | Robert Kuhlmann, Gunter Turk, Adam Becker | 1989-08-15 |
| 4495167 | Precipitated silicas having high structure and process for their preparation | Heinz Esch, Gunter Turk | 1985-01-22 |
| 4360388 | Cerium containing precipitated silica, process for its production | Robert Kuhlmann, Gunther Turk, Rudolf Bode, Arthur Reisert | 1982-11-23 |
| 4308074 | Precipitated silicic acid, method and compositions containing same | Heinz Esch, Robert Kuhlmann, Rudolf Bode, Arthur Reisert, Harald Buhler +1 more | 1981-12-29 |
| 4289681 | Boron containing precipitated silica | Robert Kuhlmann, Gunter Turk | 1981-09-15 |
| 4273589 | Precipitated silicic acid, method and compositions containing same | Heinz Esch, Robert Kuhlmann, Rudolf Bode, Arthur Reisert | 1981-06-16 |
| 4238322 | Apparatus for preparation of a sprayable precipitated silicic acid suspension | Bernd Brandt, Albert Peters, Helmut Reinhardt | 1980-12-09 |
| 4224295 | Process for the production of finely divided silicic acid by spray drying | Bernd Brandt, Albert Peters, Helmut Reinhardt | 1980-09-23 |
| 4208316 | Hydrophobic precipitated silicic acid and compositions containing same | Heinz Esch, Robert Kuhlmann, Rudolf Bode, Arthur Reisert, Harald Buhler +1 more | 1980-06-17 |