Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639998 | RF receiver utilizing dynamic power management | — | 2009-12-29 |
| 6377215 | Apparatus and method for detecting railroad locomotive turns by monitoring truck orientation | Joe B. Hungate | 2002-04-23 |
| 6360998 | Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch | Joe B. Hungate, Stephen R. Montgomery | 2002-03-26 |
| 6273521 | Electronic air brake control system for railcars | Dennis W. Sutherland | 2001-08-14 |
| 6208859 | Service preemption for mobile terminals in a mobile satellite communications system | — | 2001-03-27 |
| 6208246 | Method and apparatus for improving railcar visibility at grade crossings | Jeffrey D. Kernwein | 2001-03-27 |
| 6127747 | Method and apparatus for detecting leakage current on a two wire DC or AC power line | — | 2000-10-03 |
| 6114974 | Method and apparatus for determining railcar order in a train | — | 2000-09-05 |
| 5986579 | Method and apparatus for determining railcar order in a train | — | 1999-11-16 |