Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12397832 | Rail vehicle signal enforcement and separation control | Richard C. Carlson, Kurt A. Gunther | 2025-08-26 |
| 12258058 | Rail vehicle signal enforcement and separation control | Richard C. Carlson, Kurt A. Gunther | 2025-03-25 |
| 11700075 | Methods and systems for decentralized rail signaling and positive train control | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel | 2023-07-11 |
| 11349589 | Methods and systems for decentralized rail signaling and positive train control | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel | 2022-05-31 |
| 10926783 | Worker protection system | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel, Peter Strezev, John Albert Plutt, Jr. | 2021-02-23 |
| 10778363 | Methods and systems for decentralized rail signaling and positive train control | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel | 2020-09-15 |
| 10737709 | Worker protection system | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel, Peter Strezev, John Albert Plutt, Jr. | 2020-08-11 |
| 10336353 | Worker protection system | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel, Peter Strezev, John Albert Plutt, Jr. | 2019-07-02 |
| 10179595 | Worker protection system | Richard C. Carlson, Kurt A. Gunther, Sara Jo Woitel, Peter Strezev, John Albert Plutt, Jr. | 2019-01-15 |
| 9731738 | Rail vehicle signal enforcement and separation control | Richard C. Carlson, Kurt A. Gunther | 2017-08-15 |
| 9043131 | Collision avoidance system for rail line vehicles | Richard C. Carlson, Kurt A. Gunther | 2015-05-26 |
| 8812227 | Collision avoidance system for rail line vehicles | Richard C. Carlson, Kurt A. Gunther | 2014-08-19 |
| 8752797 | Rail line sensing and safety system | Richard C. Carlson, Peter Strezev, Kurt A. Gunther | 2014-06-17 |
| D457513 | Earset communicator | Thomas Pirelli, Gerald Hansberger | 2002-05-21 |