Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4506730 | Device for assembling jacketed lengths of pipe base well screens | Chris McCollin, Richard E. Allred, David C. Card | 1985-03-26 |
| 4482086 | Expandable packer assembly for sealing a well screen to a casing | Walter R. Wagner | 1984-11-13 |