Inventor · disambiguated record
Jiuzheng Yu
Also filed as: YU JIUZHENG
3 granted patents·0 citations·filing 2018–2023
37Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0148US11988068B1Staged multi-cluster fracturing sliding sleeve system based on smart key labelNINGBO HUAAO INTELLIGENT EQUIPMENT CO LTD·Filed 2023·Granted May 21, 2024·0 cites·10 claims
- 0236US10890059B2Layered water injection system and layered water injection methodPETROCHINA CO LTD·Filed 2018·Granted Jan 12, 2021·0 cites·12 claims
- 0335US11008830B2Stratified waterflooding apparatusPETROCHINA CO LTD·Filed 2019·Granted May 18, 2021·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →