Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208130 | Method and apparatus to improve unmonitored switch position reporting | Jeffrey D. Kernwein, Craig K. Green, Sathya Vagheeswar Venkatasubramanian | 2021-12-28 |
| 11176811 | System and method for monitoring traffic control devices | Francois P. Pretorius, Craig K. Green | 2021-11-16 |