Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747122 | Process for the preparation of polymeric sulfur compounds | Josef Hahn, Hermann-Josef Weidenhaupt, Hartmuth Buding | 2004-06-08 |
| 6319993 | Vulcanizing agents for unsaturated rubber mixtures | Hermann-Josef Weidenhaupt, Hartmuth Buding, Josef Hahn | 2001-11-20 |