Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782919 | Supply system for oil dampers | John A. Muller, Halfen L. Hoyt | 1988-11-08 |
| 4669893 | Annular oil damper arrangement | Halfen L. Hoyt, James Hurchalla | 1987-06-02 |
| 4655248 | Check valve | — | 1987-04-07 |