Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690622 | Ostomy bag filters | Paul Bird | 1997-11-25 |
| D384146 | Laryngectomy filter assembly | — | 1997-09-23 |
| 5666950 | Filter device for a tracheostoma | — | 1997-09-16 |
| 5606966 | Tracheostomy tube assembly | — | 1997-03-04 |
| 5591144 | Drainage bag | Gillian R. Little, Nicholas Steven Shelley | 1997-01-07 |