Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8985693 | Transport vehicle upright sleep support system | William J. Purpura | 2015-03-24 |
| 8528978 | Transport vehicle seat back with integrated upright sleep support system | William J. Purpura | 2013-09-10 |