Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4506730 | Device for assembling jacketed lengths of pipe base well screens | Chris McCollin, Leslie K. Bearl, David C. Card | 1985-03-26 |
| 4284138 | Coated screen jacket and coated pipe base assembly and method of making same | — | 1981-08-18 |