Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659693 | Pneumatic tube distribution system and method | James Perkins, Douglas Jeffrey Perkins | 2003-12-09 |
| 5529508 | Sealing member | Achilles Chiotis, John M. Blum | 1996-06-25 |