Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349633 | Process of microbial extraction of hydrocarbons from oil sands | Irving Rabinovitch | 1982-09-14 |
| 4342650 | Organic sludge-energy recycling method | Lennart G. Erickson | 1982-08-03 |
| 4267049 | Biological sludge-energy recycling method | Lennart G. Erickson | 1981-05-12 |