Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7398140 | Operator warning system and method for improving locomotive operator vigilance | Frank Wilson, Kevin Angel, Scott Sollars | 2008-07-08 |
| 7232083 | Method of operating brush chippers | Mark Robert Stelter, James L. O'Halloran, Dennis K. Gabler, Ivan R. Brand, Brian M. Johnson | 2007-06-19 |
| 7044409 | Brush chipper and methods of operating same | Mark Robert Stelter, James L. O'Halloran, Dennis K. Gabler, Ivan R. Brand, Brian M. Johnson | 2006-05-16 |
| 7040558 | Brush chipper and methods of operating same | Mark Robert Stelter, James L. O'Halloran, Dennis K. Gabler | 2006-05-09 |
| 7011258 | Brush chipper and methods of operating same | James L. O'Halloran, Dennis K. Gabler, Mark Robert Stelter | 2006-03-14 |
| 6208246 | Method and apparatus for improving railcar visibility at grade crossings | David H. Halvorson | 2001-03-27 |
| 6128558 | Method and apparatus for using machine vision to detect relative locomotive position on parallel tracks | — | 2000-10-03 |