2037382
Sintered product manufacturing method

2056973
Method of making builtup articles

2106430
Method of protection porous sintered material against corrosion

2114334
Friction pair

2138691
Stage of submersible multi-stage pump

2133878
Multi-stage submersible pump

2193115
Submersible pump stage

22205
Submersible centrifugal pumping unit
of small size

2232297
Centrifugal vortex pump stage

2232301
Submersible pumping unit

2232302
Method of pumping-out gas-and-liquid mixture from well and submersible pumping unit for realization of this method

2244103
Well filter

2246044
Stage of submersible multi-stage pump

2246164
Submersible oil-filled motor

2253756
Stage of submersible multistage pump

2258131
Well screen

47989
Vertical pump stand

2261369
Oil-well centrifugal pump

2274731
Oil production method anf facility

2278301
Twin-shaft multi-stage centrifugal pump

2287887
Submersible oil-filled electric motor

2289680
Expanding well filter

22838901
Iron base antifriction powder material

2295190
Submersible oil-filled motor

2304729
Stage of centrifugal turbine machine

2302477
Powder-like corrosion-resistant material

2303169
Centrifugal multi-stepped down-pump

2303168
A step of multi-step centrifugal down-pump

2303167
Stage of submersible centrifugal pump for production of oil

2301912
Heat exchanger for submersible oil-filled electric motor

2299861
Device for magnetic treatment of the liquids

2310772
Submersible multisection pumping unit

2322616
Stage of multistage submersible centrifugal pump

2327866
Gas separator

2330372
Method of electric motor stator windings compounding

2343619
Submersible electric motor

2365794
Radial distributor of multistage submersible pump

2363842
Abrasion resistant gas separator

2364755
Radial guide vane of multi-stage submersible pump

2364756
Radial guide vane of multi-stage submersible pump

2364757
Radial guide vane of multi-stage submersible pump

2368812
Deep-well multiphase pump

2374439
Abrasion-resistant gas separator

2376500
Impeller of submerged centrifugal pump stage

2379478
Thermoplasic agent well supply method and device for its execution (versions)

2379500
Abrasive-resistant centrifugal gas tank

2398097
Method for supply of inhibitor in thermoplastic matrix and device for its realisaton

2398098
Method for even supply of liquid reagent into well

Ukrainian patent 56273
Ступiнь заглибноi багатоступiнчатоi помпи

US patent 6368056
Stage in submerged multiple-stage pump //Apr. 9. 2002

International application
Stage in submerged multiple-stage pump //WO 99/27257

Eurasia patent 001523
Multistage submersible pump stage//Apr. 23. 2001

European patent application 1 033 493
Stage in submerged multiple-stage pump //6.09.2000. Bul. 2000/36

Canada patent 2 310 062
Etage de pompe immergee a pluesieurs etages. Stage in submerged multiple-stage pump