Samuil S. Nikomarov

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Patents Grantslast 30 patents

Information Patent Grant
Rotor of a screw hydraulic downhole motor, method for its productio...
- Patent number 4,909,337
- Issue date Mar 20, 1990
- Anatoly M. Kochnev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Multistage helical down-hole machine with frictional coupling of wo...
- Patent number 4,585,401
- Issue date Apr 29, 1986
- Veesojuzny Ordena Trudovogo Krasnogo Znameni Naucho-Issle
- Dmitry F. Baldenko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Bottom-hole multistart screw motor
- Patent number 4,567,953
- Issue date Feb 4, 1986
- Dmitry F. Baldenko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hinge joint for a screw planetary hydraulic drill
- Patent number 4,556,398
- Issue date Dec 3, 1985
- Vsesojuzny Nauchnoissledovatelsky Institut Burovoi Tekhniki
- Dmitry F. Baldenko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Articulated coupling
- Patent number 4,449,953
- Issue date May 22, 1984
- Permsky Filial Vsesojuznogo Nauchno-Issledovatelskogo Instituta Burovoi Tekhniki
- Samuil S. Nikomarov
- E21 - EARTH DRILLING MINING