Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7909095 | Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string | William Mark Richards | 2011-03-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7909095 | Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string | William Mark Richards | 2011-03-22 |