Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923636 | Detergent compositions | Francois Delwel, Elfed H. Evans | 1990-05-08 |
| 4826632 | Detergent compositions manufacturing process by spraying anionic/nonionic surfactant mix | Francois Delwel, Elfed H. Evans | 1989-05-02 |