Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580268 | Sucker rod dimension measurement and flaw detection system | — | 2003-06-17 |
| 5820350 | Method and apparatus for controlling downhole rotary pump used in production of oil wells | Edward Karl Mantey | 1998-10-13 |