Inventor · disambiguated record
Naizhen Liu
Also filed as: LIU NAIZHEN
1 granted patent·3 pending applications·0 citations·filing 2013–2016
13Inventor score
Files withLIU NAIZHEN4
Top patents by PatentIndex Score
4 records- 0139US9447641B2Rotary steerable drilling tool with a linear motorLIU NAIZHEN·Filed 2014·Granted Sep 20, 2016·0 cites·9 claims
- 0238US2016356088A1Method for controlling drilling directions of a drill bit by a rotary steerable drilling toolLIU NAIZHEN·Filed 2016·Application pending·0 cites
- 0331US2015035535A1Apparatus and Method for At-Bit Resistivity MeasurementsLIU NAIZHEN·Filed 2013·Application pending·0 cites
- 0431US2015028874A1Apparatus and Method for At-Bit Resistivity Measurements By A Toroidal TransmitterLIU NAIZHEN·Filed 2013·Application pending·0 cites
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