Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9816291 | Exit push rail monitoring system with hall effect sensor | Wai P. Wong, Arthur Limoncelli, Paul Nunez, Eugene W. Lawrence, III, John E. Walsh +1 more | 2017-11-14 |
| 6715225 | Illuminated exit bar | George Frolov, Alfred S. Levesque, Victor Bogdanov, Michael E. Brown | 2004-04-06 |