Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652643 | 3-amido-7-disubstituted amino-10-carbonylphenothiazines | William M. Hung | 1987-03-24 |
| 4561001 | Electrochromic marking systems | William M. Hung | 1985-12-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652643 | 3-amido-7-disubstituted amino-10-carbonylphenothiazines | William M. Hung | 1987-03-24 |
| 4561001 | Electrochromic marking systems | William M. Hung | 1985-12-24 |