Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988389 | Exploitation method for reservoirs containing hydrogen sulphide | William L. Kennedy, Michael C. Enwright | 1991-01-29 |
| 4964981 | Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation | — | 1990-10-23 |
| 4952307 | Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation | — | 1990-08-28 |
| 4871447 | Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation | — | 1989-10-03 |
| 4467868 | Enhanced oil recovery by a miscibility enhancing process | — | 1984-08-28 |