Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4711006 | Downhole sectional screw motor, mounting fixture thereof and method of oriented assembly of working members of the screw motor using the mounting fixture | Dmitry F. Baldenko, Jury V. Vadetsky, Moisei T. Gusman, Jury F. Potapov, Valery I. Semenets | 1987-12-08 |
| 4470464 | Valve means | Dmitry F. Baldenko, Valery I. Semenets | 1984-09-11 |