Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326906 | Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions | Heribert Tetzlaff, Gernot Kremer, Christoph Porz | 1994-07-05 |
| 5302677 | Alkenylaminoalkane-1,1-diphosphonic acid derivatives and copolymers thereof with unsaturated carboxylic acids | Christoph Naumann, Herrmann Hoffmann | 1994-04-12 |