Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619638 | Supplementary torsion spring assembly | — | 2003-09-16 |
| 5540417 | Adjustable coil spring assembly | — | 1996-07-30 |
| 4725116 | Multiple pass optical rotary joint | John Oliver | 1988-02-16 |