Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9108608 | Method for adjusting braking parameters of a train to account for train characteristic parameter variations | Eric Dale Cutright, Chinnarao Mokkapati | 2015-08-18 |
| 9090272 | System and method for controlling braking of a train | William Stover Rhea, Chinnarao Mokkapati, Brian Michael Nypaver | 2015-07-28 |
| 7966126 | Vital system for determining location and location uncertainty of a railroad vehicle with respect to a predetermined track map using a global positioning system and other diverse sensors | Sheldon G. Willis | 2011-06-21 |
| 6439513 | Passive detection system for levitated vehicle or levitated vehicle system | — | 2002-08-27 |
| 5398894 | Virtual block control system for railway vehicle | — | 1995-03-21 |
| 4437632 | Reset apparatus for railroad track circuits | — | 1984-03-20 |
| 4417202 | Vital DC source ground fault detector apparatus | — | 1983-11-22 |
| 4392626 | Vital protection arrangement for railroad track circuits | — | 1983-07-12 |
| 4181278 | Railroad interlocking signal system with insulated joint failure and overrun protection | — | 1980-01-01 |