Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6607046 | Expandable drill bit | Michael John Betts, Timothy William Rhys Harris | 2003-08-19 |
| 6543552 | Method and apparatus for drilling and lining a wellbore | Paul David Metcalfe | 2003-04-08 |
| 6527049 | Apparatus and method for isolating a section of tubing | Paul David Metcalfe | 2003-03-04 |