Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289845 | Oilfield tubing reel and reel assembly | David L. Sipos | 1994-03-01 |
| 4842058 | Load detection and indicator apparatus for well tubing or the like | David L. Sipos, Paul D. White, Jr. | 1989-06-27 |
| 4793410 | Load detection and indicator apparatus for well tubing or the like | David L. Sipos, Paul D. White, Jr. | 1988-12-27 |