Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373120 | Linear door motor system for elevators | Richard E. Peruggi, Louis Bialy, Ernest P. Gagnon | 1994-12-13 |
| 5329521 | Method and apparatus for redundant local area network systems | Jeffrey R. Walsh | 1994-07-12 |