Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875809 | Method for stabilizing clay minerals during oil exploitation by steam injection | Geza Csajtai, Sandor Doleschall, Miklos Kristof, Tibor Paal, Dániel Rácz +1 more | 1989-10-24 |
| 4799551 | Enhanced oil recovery | Sandorne Bauer, Zoltan Biro, Sandor Doleschall, Eva Farkas, Tibor Paal +4 more | 1989-01-24 |
| 4795564 | Process for improving the sedimentation and filtering properties of waste waters containing clay minerals | Sandor Bauer, Sandor Doleschall, Andras Gal, Gyula Nagy, Tibor Paal | 1989-01-03 |