Inventor · disambiguated record
Tiemin Liu
Also filed as: LIU TIEMIN
9 granted patents·6 citations·filing 2014–2023
77Inventor score
Top patents by PatentIndex Score
9 records- 0185US11905829B2Integrated logging instrument for coring and samplingCHINA OILFIELD SERVICES LTD·Filed 2020·Granted Feb 20, 2024·3 cites·20 claims
- 0275US12025159B2Hydraulic power system for downhole device and downhole deviceCHINA OILFIELD SERVICES LTD·Filed 2019·Granted Jul 2, 2024·2 cites·12 claims
- 0366US12012816B2Core detection device of coring instrument and spacer insertion deviceCHINA NAT OFFSHORE OIL CORP·Filed 2023·Granted Jun 18, 2024·0 cites·10 claims
- 0458US11739603B2Core detection device of coring instrumentCHINA NAT OFFSHORE OIL CORP·Filed 2021·Granted Aug 29, 2023·0 cites·16 claims
- 0554US10018038B2Drilling type sidewall coring apparatusCHINA NAT OFFSHORE OIL CORP·Filed 2014·Granted Jul 10, 2018·1 cites·18 claims
- 0653US12235194B2Coring deviceCHINA OILFIELD SERVICES LTD·Filed 2021·Granted Feb 25, 2025·0 cites·17 claims
- 0745US12359519B2Coring and sampling integrated sub and downhole instrumentCHINA OILFIELD SERVICES LTD·Filed 2021·Granted Jul 15, 2025·0 cites·19 claims
- 0839US11028658B2Horizontal-to-vertical drilling module for deep wellCHINA NAT OFFSHORE OIL CORP·Filed 2019·Granted Jun 8, 2021·0 cites·11 claims
- 0935US10236667B2Wire follow-up protection structure of electric reducerCHINA NAT OFFSHORE OIL CORP·Filed 2017·Granted Mar 19, 2019·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →