Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5921186 | Bolster land arrangement for a railcar truck | V. Terrey Hawthorne, Charles Moehling, Charles P. Spencer | 1999-07-13 |
| 5806435 | Side bearings for truck bolsters | — | 1998-09-15 |
| 5794538 | Railcar truck bearing adapter construction | — | 1998-08-18 |
| 5749301 | Multi-rate vertical load support for an outboard bearing railway truck | Robert D. Wronkiewicz, Daniel J. Schuller, Emmanuel Vander Vennen | 1998-05-12 |
| 5746137 | Railcar truck bearing adapter construction | Vaughn Terrey Hawthorne, Charles P. Spencer | 1998-05-05 |
| 5746136 | Dynamically stable, lightweight railcar support system | Vaughn Terrey Hawthorne, Charles P. Spencer | 1998-05-05 |
| 5722327 | Device for improving warp stiffness of a railcar truck | V. Terrey Hawthorne, Charles P. Spencer, Charles L. Van Auken | 1998-03-03 |
| 5086707 | Self adjusting constant contact side bearing for railcars | Charles P. Spencer | 1992-02-11 |
| 4892324 | Fifth wheel mounting pad | Charles P. Spencer, Robert P. Radwill | 1990-01-09 |