Inventor · disambiguated record
Zhuanrui Liu
Also filed as: Liu Zhuanrui
2 granted patents·0 citations·filing 2020–2020
23Inventor score
Files withSHANGHAI PUJIA DRILLING TECH CO LTD2
Top patents by PatentIndex Score
2 records- 0151US11555087B2Prepolymer of elastomer material for screw drilling tool and preparation method thereofSHANGHAI PUJIA DRILLING TECH CO LTD·Filed 2020·Granted Jan 17, 2023·0 cites·14 claims
- 0245US11673297B2Molding method for producing a stator for a screw drilling tool using elastomer materialSHANGHAI PUJIA DRILLING TECH CO LTD·Filed 2020·Granted Jun 13, 2023·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →