Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4716964 | Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion | Steven R. Erbstoesser, Claude E. Cooke, Jr., Richard G. Sinclair | 1988-01-05 |
| 4526695 | Composition for reducing the permeability of subterranean formations | Steven R. Erbstoesser, Claude E. Cooke, Jr., Richard G. Sinclair | 1985-07-02 |
| 4387769 | Method for reducing the permeability of subterranean formations | Steven R. Erbstoesser, Claude E. Cooke, Jr., Richard G. Sinclair | 1983-06-14 |