Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671824 | Vertically movable emergency egress system | Peter J. Hanrahan | 1997-09-30 |
| 5444885 | Platform edge warning ramp | Peter J. Hanrahan, Albert T. Goffe | 1995-08-29 |
| 5319812 | Vertically movable bathroom | Peter J. Hanrahan | 1994-06-14 |