Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875809 | Method for stabilizing clay minerals during oil exploitation by steam injection | Sandor Doleschall, Gyula Milley, Miklos Kristof, Tibor Paal, Dániel Rácz +1 more | 1989-10-24 |