Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6006674 | Self-steering railway truck | Mehdi Ahmadian, Dean Zeal McGrew, William A. Kurtzhals, James Whitehill, Jennifer Lynn Jaramillo | 1999-12-28 |
| 5746135 | Self-steering railway truck | Mehdi Ahmadian, Dean Zeal McGrew, William A. Kurtzhals, James Whitehill, Jennifer Lynn Jaramillo | 1998-05-05 |
| 5613444 | Self-steering railway truck | Mehdi Ahmadian, Dean Zeal McGrew, William A. Kurtzhals, James Whitehill, Jennifer Lynn Jaramillo | 1997-03-25 |
| 5344115 | Clamping and holding device | Richard C. Mayne, Richard Whyte | 1994-09-06 |
| 4470543 | Rail fastening | Ronald Jeremy Aitken | 1984-09-11 |
| 4188149 | Skin welded joint | — | 1980-02-12 |