Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799738 | Mining method for working large-scale mineral deposits by the caving system | Andras Solymos, Karoly Barsi, Laszlo Kis-Tamas, Istvan Forisek, Otto Lukonits | 1989-01-24 |
| 4340254 | Method of mining heavy coal seams in two or more benches | Karoly Barsi, Istvan Forisek, Gyula Kuburczik, Gyorgy Stuber | 1982-07-20 |