Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11898560 | Working members of a rotary hydraulic or pneumatic machine | Fedor Dmitrievich Baldenko, Ilya Alexandrovich Lyagov, Alexander Vasilievich Lyagov, Yang Yao | 2024-02-13 |
| 4823889 | Downhole screw motor | Leonid A. Kondratenko, Valery I. Semenets | 1989-04-25 |
| 4764094 | Screw machine having a plurality of symmetrically arranged rotors | Jury V. Vadetsky, Moisei T. Gusman, Valery I. Semenets, Valentina A. Khabetskaya | 1988-08-16 |
| 4711006 | Downhole sectional screw motor, mounting fixture thereof and method of oriented assembly of working members of the screw motor using the mounting fixture | Nikolai P. Bezlepkin, Jury V. Vadetsky, Moisei T. Gusman, Jury F. Potapov, Valery I. Semenets | 1987-12-08 |
| 4585401 | Multistage helical down-hole machine with frictional coupling of working elements, and method therefor | Jury V. Vadetsky, Moisei T. Gusman, Anatoly M. Kochnev, Samuil S. Nikomarov, Valery I. Semenets +3 more | 1986-04-29 |
| 4567953 | Bottom-hole multistart screw motor | Talgat N. Bikchurin, Jury V. Vadetsky, Moisei T. Gusman, Anatoly M. Kochnev, Samuil S. Nikomarov | 1986-02-04 |
| 4556398 | Hinge joint for a screw planetary hydraulic drill | Yury V. Vadetsky, Vladimir B. Goldobin, Moisei T. Gusman, Anatoly M. Kochnev, Samuil S. Nikomarov +1 more | 1985-12-03 |
| 4518049 | Bottom hole motor for driving rock-breaking tool | Moisei T. Gusman, Valery I. Semenets | 1985-05-21 |
| 4470464 | Valve means | Nikolai P. Bezlepkin, Valery I. Semenets | 1984-09-11 |