Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5720177 | Multichambered pump for a vapor compression refrigeration system | Danny O. Derrick | 1998-02-24 |
| 4518817 | Buried conductor cable energy distribution system with conductor loop enclosure | Donald F. Looney | 1985-05-21 |