Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425442 | Anti-rotation device for use with well tools | Burney J. Latiolais, Jr., Keith T. Lutgring | 2002-07-30 |
| 6302199 | Mechanism for dropping a plurality of balls into tubulars used in drilling, completion and workover of oil, gas and geothermal wells | Burney J. Latiolais, Jr., Keith T. Lutgring | 2001-10-16 |
| 6279654 | Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing | Donald E. Mosing, David L. Sipos, Keith T. Lutgring, Burney J. Latiolais, Jr. | 2001-08-28 |
| 5918673 | Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing | Donald E. Mosing, David L. Sipos, Keith T. Lutgring, Burney J. Latiolais, Jr. | 1999-07-06 |
| 5908072 | Non-metallic centralizer for casing | — | 1999-06-01 |
| 5735348 | Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing | — | 1998-04-07 |
| 5706894 | Automatic self energizing stop collar | — | 1998-01-13 |