Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7686076 | Expandable tubulars for use in a wellbore | Patrick L. York, Lev Ring | 2010-03-30 |
| 6732804 | Dynamic mudcap drilling and well control system | David Hosie, Ramkumar K. Bansal | 2004-05-11 |