Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6786459 | Concrete railroad tie turnout assembly | — | 2004-09-07 |
| 6572027 | Concrete railroad tie two-piece insulator spacer and fastening system | Richard A. Burke | 2003-06-03 |
| 6343748 | Concrete railroad tie insulator spacer and fastening system | Richard A. Burke | 2002-02-05 |
| 4530434 | Method and apparatus for the inspection and separation of symmetrical stable units | Andrew Wowczuk | 1985-07-23 |
| 4326421 | Continuous proofloader | Harry Trautmann | 1982-04-27 |
| 4196811 | Method and apparatus for the inspection of buttons | Andrew Wowczuk | 1980-04-08 |