Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4753295 | Method for placing ball sealers onto casing perforations in a deviated portion of a wellbore | Steven R. Erbstoesser | 1988-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4753295 | Method for placing ball sealers onto casing perforations in a deviated portion of a wellbore | Steven R. Erbstoesser | 1988-06-28 |