Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6194986 | Quick bottom connection for a transformer bushing | Eric Ralph Weatherbee, Daxiong ZENG | 2001-02-27 |
| 4673500 | Sand separation and removal method and apparatus | Rodger A. Hoofnagle | 1987-06-16 |
| 4489517 | Reversible door and frame assembly | — | 1984-12-25 |