Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10017197 | Apparatus for bi-directional downstream adjacent crossing signaling | — | 2018-07-10 |
| 9248849 | Apparatus for bi-directional downstream adjacent crossing signaling | — | 2016-02-02 |
| 8500071 | Method and apparatus for bi-directional downstream adjacent crossing signaling | — | 2013-08-06 |
| 8297558 | Crossing predictor with authorized track speed input | Patrick Joseph Venneman | 2012-10-30 |