Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10292230 | System and method for controlling a wayside device | William Shields, Forrest H. Ballinger, Jeffrey Michael Fries, Larry J. Anderson | 2019-05-14 |
| 4581700 | Processing system for grade crossing warning | Wilfred L. Farnham, Lynn R. Garrison, Forrest H. Ballinger | 1986-04-08 |