Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11724724 | System for controlling vital wayside devices of a railway network, and vital switch for such vital devices | Nicholas David Nagrodsky, James Frisbie, Chris Schuchmann | 2023-08-15 |
| 10293840 | Wayside communication system using power grid lines | Nicholas David Nagrodsky, Jeffrey Michael Fries, John Charles Hounschell, II, James Kiss | 2019-05-21 |
| 6508114 | Webbing tension sensor | — | 2003-01-21 |
| 6495775 | Power socket device with enabling switch and method of operation | Ali El-Haj | 2002-12-17 |
| 4782554 | Curtain rod cover | — | 1988-11-08 |