Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5253993 | Apparatus for the production of pellets of metal powder used as catalysts | Udo Birkenstock, Wolfgang Korsch | 1993-10-19 |
| 5135665 | Multichamber-candle filter element | Udo Birkenstock, Glenn Hohle | 1992-08-04 |
| 5135903 | Process for the production of pellets of metal powder as catalysts | Udo Birkenstock, Wolfgang Korsch | 1992-08-04 |