Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537457 | Method for treating circulating water from an enamelling line | Dirk Bohnes, Johannes Lindemann | 2003-03-25 |
| 6475295 | Method for cleaning the paint feeding parts of a painting installation, especially the paint lines | Alfred Bohnes, Johannes Lindemann, Dirk Bohnes | 2002-11-05 |
| 6432220 | Process for the preliminary treatment of a metallic workpiece before coating | Johannes Lindemann, Rainer Kluth, Dirk Bohnes | 2002-08-13 |
| 6328893 | Method of processing waste water, in particular from malt factories and breweries | Johannes Lindemann, Horst Rettig | 2001-12-11 |