Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895226 | Vehicle automatic slack adjuster | Frederic Lissau | 1990-01-23 |
| 4793819 | Over-the-road vehicle electrical connector with drain passage | — | 1988-12-27 |
| 4624345 | Vehicle slack adjusters | Frederic Lissau | 1986-11-25 |
| 4550928 | Front air swingaway | — | 1985-11-05 |
| 4544132 | Combination gladhand and shutoff valve | Charles S. Allen, Eugene W. Schmitt, Michael R. Stoltenberg, Frederic Lissau | 1985-10-01 |