Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D557408 | Mask assembly | Amal Shirley Amarasinghe, Timothy Tsun-Fai Fu, Aaron Samuel Davidson, Daniel Joseph Kaars Sijpesteijn | 2007-12-11 |
| D542407 | Vent for respiratory mask | Philip Thomas Stallard, Lee James Veliss | 2007-05-08 |