Inventor · disambiguated record
Andrei N. Vshivkov
Also filed as: VSHIVKOV ANDREI N
3 granted patents·120 citations·filing 1986–1989
76Inventor score
Top patents by PatentIndex Score
3 records- 0186US4909337ARotor of a screw hydraulic downhole motor, method for its production and a device for its productionKOCHNEV ANATOLY M·Filed 1986·Granted Mar 20, 1990·59 cites·8 claims
- 0283US5221197AWorking member of a helical downhole motor for drilling wellsKOCHNEV ANATOLY M·Filed 1989·Granted Jun 22, 1993·45 cites·3 claims
- 0334US5228526AOverflow valve of drill stringVSHIVKOV ANDREI N·Filed 1989·Granted Jul 20, 1993·16 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Andrei N. Vshivkov files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →