Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826632 | Detergent compositions manufacturing process by spraying anionic/nonionic surfactant mix | Stephen N. Blackburn, Francois Delwel | 1989-05-02 |
| 4820441 | Process for the preparation of a granular detergent composition | Peter C. Knight | 1989-04-11 |
| 4818424 | Spray drying of a detergent containing a porus crystal-growth-modified carbonate | Peter C. Knight | 1989-04-04 |