Inventor · disambiguated record
Yongren Feng
Also filed as: FENG YONGREN
18 granted patents·12 citations·filing 2013–2023
88Inventor score
Top patents by PatentIndex Score
18 records- 0185US11905829B2Integrated logging instrument for coring and samplingCHINA OILFIELD SERVICES LTD·Filed 2020·Granted Feb 20, 2024·3 cites·20 claims
- 0279US10381899B2Sidewall coring structure directly driven by an electric motorCHINA NAT OFFSHORE OIL CORP·Filed 2016·Granted Aug 13, 2019·2 cites·15 claims
- 0375US12025159B2Hydraulic power system for downhole device and downhole deviceCHINA OILFIELD SERVICES LTD·Filed 2019·Granted Jul 2, 2024·2 cites·12 claims
- 0466US12012816B2Core detection device of coring instrument and spacer insertion deviceCHINA NAT OFFSHORE OIL CORP·Filed 2023·Granted Jun 18, 2024·0 cites·10 claims
- 0561US9988899B2Rock formation testing method and formation testing instrumentCHINA NAT OFFSHORE OIL CORP·Filed 2013·Granted Jun 5, 2018·2 cites·5 claims
- 0658US11739603B2Core detection device of coring instrumentCHINA NAT OFFSHORE OIL CORP·Filed 2021·Granted Aug 29, 2023·0 cites·16 claims
- 0755US10180064B2System for sampling from formation while drillingCHINA NAT OFFSHORE OIL CORP·Filed 2014·Granted Jan 15, 2019·2 cites·12 claims
- 0854US10018038B2Drilling type sidewall coring apparatusCHINA NAT OFFSHORE OIL CORP·Filed 2014·Granted Jul 10, 2018·1 cites·18 claims
- 0953US12235194B2Coring deviceCHINA OILFIELD SERVICES LTD·Filed 2021·Granted Feb 25, 2025·0 cites·17 claims
- 1053US12188919B2Method and system for measuring composition and property of formation fluidCHINA OILFIELD SERVICES LTD·Filed 2020·Granted Jan 7, 2025·0 cites·17 claims
- 1149US10208736B2High-pressure fluid mixing pump control system and fluid suction control methodCHINA NAT OFFSHORE OIL CORP·Filed 2013·Granted Feb 19, 2019·0 cites·6 claims
- 1248US9982816B2Pup joint for releasing sidewall contact of stratigraphic test device and apparatusCHINA NAT OFFSHORE OIL CORP·Filed 2013·Granted May 29, 2018·0 cites·8 claims
- 1345US12359519B2Coring and sampling integrated sub and downhole instrumentCHINA OILFIELD SERVICES LTD·Filed 2021·Granted Jul 15, 2025·0 cites·19 claims
- 1444US11072981B2Sampling-by-pushing system and setting method thereofCHINA OILFIELD SERVICES LTD·Filed 2019·Granted Jul 27, 2021·0 cites·11 claims
- 1542US11624244B2Connecting structure for drill collar of logging while drilling instrument and drill collar sub male and female jointsCHINA OILFIELD SERVICES LTD·Filed 2019·Granted Apr 11, 2023·0 cites·13 claims
- 1639US11788405B2Downhole oil level detection deviceCHINA OILFIELD SERVICES LTD·Filed 2020·Granted Oct 17, 2023·0 cites·16 claims
- 1739US11028658B2Horizontal-to-vertical drilling module for deep wellCHINA NAT OFFSHORE OIL CORP·Filed 2019·Granted Jun 8, 2021·0 cites·11 claims
- 1835US10236667B2Wire 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 →