Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895669 | Aqueous based acidic hard surface cleaner | Clement K. Choy | 1990-01-23 |
| 4804491 | Aqueous based acidic hard surface cleaner | Clement K. Choy | 1989-02-14 |
| 4759867 | Hard surface acid cleaner | Clement K. Choy | 1988-07-26 |