Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9296402 | Vehicle location identification systems and methods | Jess Backes, Joseph Edward Tierney, John Greg Zimmerman | 2016-03-29 |
| 8170732 | System and method for operating train in the presence of multiple alternate routes | Wolfgang Daum | 2012-05-01 |
| 5414646 | Digital optical micrometer | David Sanders | 1995-05-09 |