Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7607836 | Seal for railway car journal bearing | Michael A. Mason, David Wayne Shannon, Paul A. Hubbard, Kurt W. Fisher | 2009-10-27 |
| 5975533 | Labyrinth-type seal for railway car journal bearing | Paul A. Hubbard, Kurt W. Fisher | 1999-11-02 |