Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795290 | Surge arrestor | Peter Bobert, Juergen Boy | 2004-09-21 |
| 6710996 | Surge arrestor | Peter Bobert, Juergen Boy | 2004-03-23 |
| 4944866 | Process for the hydrogenation of coal | Ulrich Graeser, Ludwig Merz | 1990-07-31 |
| 4583995 | Method of producing synthesis gas | Lothar Winckler, Ulrich Graeser, Peter Wenning | 1986-04-22 |
| 4584060 | Low temperature carbonization process for coal hydrogenation residues | Lothar Winckler, Ulrich Graeser, Peter Wenning | 1986-04-22 |