Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772760 | Mask with gusset | Robert Henry Frater, Michael Kassipillai Gunaratnam | 2004-08-10 |
| D492992 | Portion of mask assembly | Memduh Guney, Timothy Tsun-Fai Fu, Perry David Lithgow, Amal Shirley Amarasinghe, Jim Saada +5 more | 2004-07-13 |
| 6691707 | Connector for a respiratory mask and a respiratory mask | Michael Kassipillai Gunaratnam, Geoffrey Crumblin, Phillip Jenkinson, Susan Robyn Lynch | 2004-02-17 |
| D486226 | Mask assembly | Memduh Guney, Timothy Tsun-Fai Fu, Perry David Lithgow, Amal Shirley Amarasinghe, Jim Saada +5 more | 2004-02-03 |
| 6581594 | Respiratory mask having gas washout vent and gas washout vent for respiratory mask | Alexander Virr, Geoffrey Crumblin | 2003-06-24 |