Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4406327 | Chemically-aided gas cap drive | Edwin A. Richardson | 1983-09-27 |
| 4399868 | Unplugging brine-submerged perforations | Edwin A. Richardson | 1983-08-23 |
| 4330037 | Well treating process for chemically heating and modifying a subterranean reservoir | Edwin A. Richardson | 1982-05-18 |