Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6254156 | Rolling blade cup gripper | John P. Sherwin | 2001-07-03 |
| 5833255 | Bicycle seat suspension | Mark J. Sarder | 1998-11-10 |
| 5265397 | Flexible apparatus and process for loading and sealing pouches | John DePoint, Jr., Michael L. Koelsch, Vincent J. Panzarella | 1993-11-30 |
| D322362 | Stairway lift chair | John F. Prendergast, Sr., Thomas J. Green, John Sinchok | 1991-12-17 |
| 4913264 | Stairway chairlift mechanism | John F. Prendergast, Sr., Thomas J. Green | 1990-04-03 |