Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846501 | Process for the selective recovery of the salt constituents from used hardening shop salts which contain nitrite-nitrate | Matthias Kremer, Georg Wahl, Eberhard Gock, Stefan Wigger | 1998-12-08 |
| 5769906 | Process for recovering the salt constituents from hardening-shop salt baths | Mattias Kremer, Georg Wahl, Eberhard Gock, Stefan Wigger | 1998-06-23 |