Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7137945 | Underground treatment of biowaste | — | 2006-11-21 |
| 6769498 | Method and apparatus for inducing under balanced drilling conditions using an injection tool attached to a concentric string of casing | — | 2004-08-03 |
| 5950744 | Method and apparatus for aligning drill pipe and tubing | — | 1999-09-14 |
| 5941321 | Method and apparatus for drilling a planar curved borehole | — | 1999-08-24 |
| 5467834 | Method and apparatus for short radius drilling of curved boreholes | James W. McCabe, Owen L. Marks, Jr. | 1995-11-21 |