Issued Patents All Time
Showing 76–77 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828034 | Method of hydrating oil based fracturing concentrate and continuous fracturing process using same | Vernon G. Constien | 1989-05-09 |
| 4801389 | High temperature guar-based fracturing fluid | Richard M. Hodge, Kevin W. England | 1989-01-31 |