Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5553671 | Piston sub for isolating drilling fluids from hydraulic fluids | — | 1996-09-10 |
| 5549163 | Piston sleeve valve for use with oilfield fishing operations | — | 1996-08-27 |
| 5499682 | Method for setting a slotted face wellbore deviation assembly using a rectilinear setting tool | — | 1996-03-19 |
| 5474133 | Method for retreiving a slotted face wellbore deviation assembly using a retrieval tool | — | 1995-12-12 |
| 5474125 | Retrieval tool for use with a slotted face wellbore deviation assembly | — | 1995-12-12 |
| 5467821 | Rectilinear tool for use with a slotted face wellbore deviation assembly | — | 1995-11-21 |
| 5467820 | Slotted face wellbore deviation assembly | — | 1995-11-21 |
| 5425419 | Whipstock apparatus and methods of use | — | 1995-06-20 |