Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634358 | Nasal mask cushion assembly | Philip Rodney Kwok | 2003-10-21 |
| 6581602 | Nasal mask and mask cushion therefor | Philip Rodney Kwok | 2003-06-24 |
| 6532961 | Forehead support for facial mask | Philip Rodney Kwok, Michael Kassipillai Gunaratnam, Perry David Lithgow, Jonathan P. Harrison, Jonathan Lee Liston +1 more | 2003-03-18 |
| 6513526 | Full-face mask and mask cushion therefor | Philip Rodney Kwok, Gregory Scott Smart | 2003-02-04 |