Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823869 | Mask assembly | Milind Chandrakant Raje, Timothy Tsun-Fai Fu, Amal Shirley Amarasinghe, Joanne Elizabeth Drew, Memduh Guney +1 more | 2004-11-30 |
| 6772760 | Mask with gusset | Joanne Elizabeth Drew, Michael Kassipillai Gunaratnam | 2004-08-10 |
| D492992 | Portion of mask assembly | Memduh Guney, Timothy Tsun-Fai Fu, Perry David Lithgow, Amal Shirley Amarasinghe, Joanne Elizabeth Drew +5 more | 2004-07-13 |
| D486226 | Mask assembly | Memduh Guney, Timothy Tsun-Fai Fu, Perry David Lithgow, Amal Shirley Amarasinghe, Joanne Elizabeth Drew +5 more | 2004-02-03 |