Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869322 | Sequential hydraulic fracturing of a subsurface formation | Mitchell Hale, Jay R. Sellers | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869322 | Sequential hydraulic fracturing of a subsurface formation | Mitchell Hale, Jay R. Sellers | 1989-09-26 |