Inventor · disambiguated record

Zhiguo Qiao

Also filed as: QIAO ZHIGUO

1 granted patent·0 citations·filing 2021–2021

2Inventor score

Technology areasE21B

Files withCHINA PETROLEUM & CHEM CORP1

Top patents by PatentIndex Score

1 record

0138US12486753B2Wellbore staged operation method and rubber plug for said methodCHINA PETROLEUM & CHEM CORP·Filed 2021·Granted Dec 2, 2025·0 cites·12 claims

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Zhiguo Qiao — Patent Inventor | PatentIndex