Inventor · disambiguated record

Zichao Ii

Also filed as: II ZICHAO

1 granted patent·2 citations·filing 2014–2014

18Inventor score

Technology areasE21B

Files withCHINA NAT OFFSHORE OIL CORP1

Top patents by PatentIndex Score

1 record

0155US10180064B2System for sampling from formation while drillingCHINA NAT OFFSHORE OIL CORP·Filed 2014·Granted Jan 15, 2019·2 cites·12 claims

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