Inventor · disambiguated record
Changming Su
Also filed as: SU CHANGMING
4 granted patents·9 citations·filing 2003–2022
66Inventor score
Files withCHINA PETROLEUM & CHEM CORP1CHINA PETROLEUM & CHEMICAL1LIAONING HUAYE ENERGY TECH SERVICE CO LTD1YANG XIAOHUA1
Top patents by PatentIndex Score
4 records- 0173US8623791B2Copolymer and preparation method and application thereofYANG XIAOHUA·Filed 2011·Granted Jan 7, 2014·4 cites·22 claims
- 0257US11898099B1Fracturing propping agent and preparation method of fracturing propping agent by using oil sludge produced in exploited of oil and gas fieldLIAONING HUAYE ENERGY TECH SERVICE CO LTD·Filed 2022·Granted Feb 13, 2024·0 cites·9 claims
- 0354US10266617B2Cationic copolymer and use thereof in lost circulation additiveCHINA PETROLEUM & CHEM CORP·Filed 2013·Granted Apr 23, 2019·1 cites·21 claims
- 0446US7323434B2Electropositive production well treating fluid and method of preparing the sameCHINA PETROLEUM & CHEMICAL·Filed 2003·Granted Jan 29, 2008·4 cites·14 claims
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