Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092522 | Powder inhaler having capsule holding structure and anti-static walls | John Richard Calvert, Robert Stanley Cook, Michael A. Hobbs, Ann-Marie Leighton, Gordon T. Simpkin +1 more | 2000-07-25 |
| 5522383 | Powder inhaler having capsule holding structure and anti-static walls | John Richard Calvert, Robert Stanley Cook, Michael A. Hobbs, Ann-Marie Leighton, Gordon T. Simpkin +1 more | 1996-06-04 |