Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607902 | Method of treating shale and clay in hydrocarbon formation drilling | Kevin W. Smith | 1997-03-04 |
| 5591701 | Iterated foam process and composition for well treatment | — | 1997-01-07 |