Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334952 | Multistage molecular evaporator with wiped off film and continuous redistillation | Jan Cvengros | 1982-06-15 |
| 4333822 | Method of treating waste engine oils | Jan Cvengros | 1982-06-08 |