Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658861 | Delayed borate crosslinked fracturing fluid having increased temperature range | Vernon G. Constien, Kay E. Cawiezel | 1997-08-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658861 | Delayed borate crosslinked fracturing fluid having increased temperature range | Vernon G. Constien, Kay E. Cawiezel | 1997-08-19 |