Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861500 | Delayed crosslinker composition containing organic titanium complexes and hydroxycarboxylic acids | — | 1989-08-29 |
| 4801389 | High temperature guar-based fracturing fluid | Harold Dean Brannon, Kevin W. England | 1989-01-31 |
| 4797216 | Delayed crosslinker composition | — | 1989-01-10 |