Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595288 | 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. | 2003-07-22 |
| 6571880 | Method and multi-purpose apparatus for control of fluid in wellbore casing | Charles Butterfield, Robert Bates, David F. Laurel, Burney J. Latiolais, Jr., Keith T. Lutgring | 2003-06-03 |