Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834184 | Drillable, testing, treat, squeeze packer | Donald F. Hushbeck | 1989-05-30 |
| 4823881 | Hydraulic setting tool | — | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834184 | Drillable, testing, treat, squeeze packer | Donald F. Hushbeck | 1989-05-30 |
| 4823881 | Hydraulic setting tool | — | 1989-04-25 |