Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576188 | Surface and air sterilization using ultraviolet light and ultrasonic waves | William E. Clark | 2003-06-10 |
| 6171548 | Surface and air sterilization using ultraviolet light and ultrasonic waves | William E. Clark | 2001-01-09 |
| 6090346 | Sterilization using ultraviolet light and ultrasonic waves | William E. Clark | 2000-07-18 |