Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6962217 | Rotary drill bit compensating for changes in hardness of geological formations | — | 2005-11-08 |
| 6896653 | Personal pelvic viewer | Marilyn L. Vail | 2005-05-24 |
| 6868906 | Closed-loop conveyance systems for well servicing | James E. Chitwood | 2005-03-22 |
| 6857486 | High power umbilicals for subterranean electric drilling machines and remotely operated vehicles | James E. Chitwood, William George Crossland, Damir S. Skerl, Robert L. Dekle | 2005-02-22 |