Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10272932 | Anti-collision device and system for use with a rail car | John Roberts, Timothy J. Benjamin | 2019-04-30 |
| 10207726 | Enhanced rail worker protection warning system (PWS) | Michael S. Davis | 2019-02-19 |
| 10179596 | Rail warning system and method | — | 2019-01-15 |
| 9994242 | V-aware end of train device | — | 2018-06-12 |
| 9902411 | Work block encroachment warning system | Michael S. Davis | 2018-02-27 |
| 9878729 | Failsafe rail mounted shunt device | Michael S. Davis | 2018-01-30 |
| 9776648 | Emergency action system for use with a locomotive | Timothy J. Benjamin, John Roberts | 2017-10-03 |
| 8109474 | Dual ultrasonic train detector | — | 2012-02-07 |
| 8061662 | Portable automatic train trip cock tripper | — | 2011-11-22 |
| 7624952 | Safety system for railroad personnel | — | 2009-12-01 |
| 6737978 | Voltage testing apparatus for electrical railways | — | 2004-05-18 |