Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336992 | Method and apparatus for wetting fibrous material | — | 2002-01-08 |
| 6193945 | Method of recovering calcium from waste material or contaminated natural calcic material | Günter Betz | 2001-02-27 |