Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758281 | Methods and apparatus for creating a downhole buoyant casing chamber | Henry E. Rogers | 2004-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758281 | Methods and apparatus for creating a downhole buoyant casing chamber | Henry E. Rogers | 2004-07-06 |