Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4482305 | Axial flow apparatus with rotating helical chamber and spindle members | Elek Ujfelusi | 1984-11-13 |
| 4397619 | Hydraulic drilling motor with rotary internally and externally threaded members | Odon Alliquander, Elek Ujfalusi | 1983-08-09 |