Inventor · disambiguated record
Youzhi Zheng
Also filed as: ZHENG YOUZHI
5 granted patents·1 citations·filing 2017–2022
60Inventor score
Top patents by PatentIndex Score
5 records- 0172US11112398B2Apparatus and method for determining volume stability of well cementPETROCHINA CO LTD·Filed 2018·Granted Sep 7, 2021·1 cites·10 claims
- 0259US12391861B2Cement slurry system, preparation method therefor and use thereofCHINA NAT PETROLEUM CORP·Filed 2022·Granted Aug 19, 2025·0 cites·13 claims
- 0356US12305116B2Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereofCHINA NAT PETROLEUM CORP·Filed 2022·Granted May 20, 2025·0 cites·19 claims
- 0444US11926787B2Well cementing method for improving well cementing quality by controlling hydration heat of cement slurryPETROCHINA CO LTD·Filed 2020·Granted Mar 12, 2024·0 cites·13 claims
- 0540US10928282B2Method and device for determining elasticity of cement stone utilized in well cementing of oil-gas wellPETROCHINA CO LTD·Filed 2017·Granted Feb 23, 2021·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →