Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8082071 | System and method of multi-generation positive train control system | Wolfgang Daum, John Erik Hershey, Randall Markley, Paul M. Julich | 2011-12-20 |
| 7937193 | Method and apparatus for coordinating railway line of road and yard planners | Joseph Wesley Philp, Joanne Maceo | 2011-05-03 |