Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612309 | Nitrogen-free rinse cycle fabric softeners based on microemulsions | Andre Crutzen | 1997-03-18 |
| 5599473 | Nitrogen-free rinse cycle fabric softeners based on microemulsions | Andre Crutzen | 1997-02-04 |