Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961438 | Method and apparatus for the injection disposal of solid and liquid waste materials into subpressured earth formations penetrated by a borehole | W. Thomas Ballantine, Albert H. D. Alexander, Leland D. Lakey, Stephen Marinello | 1999-10-05 |
| 5734988 | Method and apparatus for the injection disposal of solid and liquid waste materials into subpressured earth formations penetrated by a borehole | Albert H. D. Alexander, W. Thomas Ballatine, Leland D. Lakey, Stephen Marinello | 1998-03-31 |
| 5589603 | Method and apparatus for the injection disposal of solid and liquid waste materials from the drilling and production of oil and gas wells | Albert H. D. Alexander, W. Thomas Ballatine, Leland D. Lakey | 1996-12-31 |