Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859117 | Precipitated silicas, a process for their preparation and their use in vulcanizable rubber mixtures | Udo Goerl, Robert Kuhlmann, Mustafa Siray, Heinz Esch | 1999-01-12 |
| 5705137 | Precipitated silicas, a process for their preparation and their use in vulcanizable rubber mixtures | Udo Goerl, Robert Kuhlmann, Mustafa Siray, Heinz Esch | 1998-01-06 |