Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7201017 | Refrigeration unit | Ulrich Barth, Emanuele Negro, Helner Veelken | 2007-04-10 |
| 4428923 | Continuous process for the production of hydrogen peroxide according to the anthraquinone process | Wolfgang Kunkel, Jorg Kemnade | 1984-01-31 |