Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4771982 | Slidable electric valve device having a spring | Judson S. Kuehn, William H. Silcox | 1988-09-20 |
| 4770389 | Electric valve device | Judson S. Kuehn, William H. Silcox | 1988-09-13 |
| 4681298 | Slidable electric valve device having a spring | Judson S. Kuehn, William H. Silcox | 1987-07-21 |
| 4580761 | Electric valve device having a rotatable core | William H. Silcox, Judson S. Kuehn | 1986-04-08 |