Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457930 | Device and procedure for the slitting open of sacks | Ewald Marnette, Heinrich Klöckner | 2002-10-01 |
| 5135766 | Process for the decaffeination of raw coffee | Wolfgang Sirtl | 1992-08-04 |