Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364819 | Conversion of asphaltene-containing charge stocks | Leroi E. Hutchings | 1982-12-21 |
| 4358365 | Conversion of asphaltene-containing charge stocks | Leroi E. Hutchings | 1982-11-09 |