Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346256 | Conduit in supplying electrical power and pressurized fluid to a point in a subterranean well | John W. Erickson | 1982-08-24 |
| 4243528 | Treater for mechanically breaking oil and water emulsions of a production fluid from a petroleum well | William E. Jackson | 1981-01-06 |