Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7457199 | Shear mode folded shell projector | Christopher John A. Purcell | 2008-11-25 |
| 7355926 | Portable low frequency projector | Richard J. Religa, George K. Schattschneider | 2008-04-08 |
| 6584039 | Multi-mode pipe projector | Christopher John A. Purcell | 2003-06-24 |
| 6567342 | Flared wave-guide projector | Christopher John A. Purcell | 2003-05-20 |
| 6567343 | Flextensional resonant pipe projector | Christopher John A. Purcell | 2003-05-20 |