Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4531582 | Well conduit centralizer | Harry W. Riddle, Frank S. Zeiler, Juventino Buruato | 1985-07-30 |
| 4393931 | Combination hydraulically set hanger assembly with expansion joint | Rudy B. Callihan, Bobby F. Goad, Clyde Wainwright | 1983-07-19 |