Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4574830 | Apparatus for pigging hydrocarbon product flowlines | Wynn P. Rickey, Roger W. Huffaker | 1986-03-11 |
| 4528041 | Method for pigging hydrocarbon product flowlines | Wynn P. Rickey, Roger W. Huffaker | 1985-07-09 |
