Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7363985 | Hydraulic latch for capillary tubing string | John M. Allen | 2008-04-29 |
| 6955225 | Method of and apparatus for securing capillary tubing in a wellhead | — | 2005-10-18 |
| 6223819 | Wellhead for providing structure when utilizing a well pumping system | — | 2001-05-01 |
| 5878812 | Misaligning wellhead system | James A. Wilson | 1999-03-09 |
| 5246067 | Well leak catcher | James A. Wilson, Eric R. Cassidy | 1993-09-21 |
| 5044602 | Blowout preventer | — | 1991-09-03 |
| 4907650 | Wellhead with safety valve for pumping well | — | 1990-03-13 |
| 4632468 | Guide for well pump sucker rod | James A. Wilson | 1986-12-30 |