Inventor · disambiguated record
Songyin Liu
Also filed as: LIU SONGYIN
2 granted patents·1 pending application·9 citations·filing 2020–2025
50Inventor score
Files withZL EOR CHEMICALS LTD3
Top patents by PatentIndex Score
3 records- 0189US11148106B2Polymer dispersion system for use in a hydraulic fracturing operationZL EOR CHEMICALS LTD·Filed 2020·Granted Oct 19, 2021·9 cites·18 claims
- 0264US11850560B2Polymer dispersion system for use in a hydraulic fracturing operationZL EOR CHEMICALS LTD·Filed 2021·Granted Dec 26, 2023·0 cites·20 claims
- 0345US2025256253A1Modular unit for preparing friction reduction agentZL EOR CHEMICALS LTD·Filed 2025·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →