Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6514916 | Process for making sulfonated uintaite and well fluid additives including sulfonated uintaite | Billy L. Swanson | 2003-02-04 |
| 4514308 | Sulfonated asphalt | Jeffrey A. Russell | 1985-04-30 |
| 4389320 | Foamable compositions and formations treatment | — | 1983-06-21 |
| 4300634 | Foamable compositions and formations treatment | — | 1981-11-17 |