Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182131 | Dual diameter and rotating centralizer/sub and method | — | 2007-02-27 |
| 7156171 | Dual diameter and rotating centralizer/sub | — | 2007-01-02 |
| 7140432 | Dual diameter and rotating centralizer/sub and method | — | 2006-11-28 |
| 6484803 | Dual diameter centralizer/sub and method | — | 2002-11-26 |