Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5963317 | Apparatus for inspecting well screens and associated methods | Darrell Adkins | 1999-10-05 |
| 5938925 | Progressive gap sand control screen and process for manufacturing the same | Ralph H. Echols, Colby M. Ross | 1999-08-17 |
| 5803179 | Screened well drainage pipe structure with sealed, variable length labyrinth inlet flow control apparatus | Ralph H. Echols, David Fish, Rex D. Presley, Timothy Edward Harms | 1998-09-08 |
| 5190374 | Method and apparatus for continuously mixing well treatment fluids | Weldon M. Harms, Thomas E. Allen, Lewis R. Norman | 1993-03-02 |
| 4996872 | Modular core holder | James W. Mueller, Clinton W. Cole, Jackie K. Lucas | 1991-03-05 |
| 4953618 | Injection manifold and method | Jackie K. Lucas, Russell Ray Lockman | 1990-09-04 |
| 4508133 | Protective cover retainer | — | 1985-04-02 |
| 4487025 | Passive booster for pumping liquified gases | — | 1984-12-11 |