Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4281196 | Quaternary ammonium compounds, their preparation, and their use as softening agents | Horst Rutzen, Jochen Heidrich, Martin Bischoff, Peter Waltenberger, Ingo Wegener | 1981-07-28 |