Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6054227 | Photocatalytically-activated self-cleaning appliances | Charles B. Greenberg | 2000-04-25 |
| 4284356 | Method of and apparatus for comparing surface reflectivity | — | 1981-08-18 |