Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12209737 | Remote controlled light adjustment device and associated method | Bret Walker | 2025-01-28 |
| 11945484 | Shunt frequency check and transmit system | — | 2024-04-02 |
| 11866076 | Track circuit with continued distance monitoring and broken rail protection | Holger Schmidt, Brian Joseph Hogan, A. Nathan Edds | 2024-01-09 |
| 11713066 | Railroad crossing control system including constant warning time device and axle counter system | Holger Schmidt | 2023-08-01 |
| 11459006 | Modular lamp system for railroad crossing warning device | Richard Alan McGavock, Jr. | 2022-10-04 |
| 11430318 | Electrical surge management of railway signaling equipment | Richard Alan McGavock, Jr., John Sanders | 2022-08-30 |
| 11420659 | Traffic control system and method for providing a preemption signal | Holger Schmidt | 2022-08-23 |
| 11021180 | Railway road crossing warning system with sensing system electrically-decoupled from railroad track | Holger Schmidt, Stefan Fritschi, Jay Yocum | 2021-06-01 |
| 10780903 | Detection of dynamic train-to-rail shunting performance | — | 2020-09-22 |
| 10676116 | Crossing warning equipment mount | — | 2020-06-09 |
| 9956972 | Detection of dynamic train-to-rail shunting performance | — | 2018-05-01 |
| 9671487 | Track test load device and track test load system for calibrating a constant warning time device | Jay Yocum | 2017-06-06 |