Inventor · disambiguated record
Chunmei Zhang
Also filed as: ZHANG CHUNMEI
15 granted patents·26 citations·filing 2017–2023
87Inventor score
Files withSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD8UNIV SOUTHWEST PETROLEUM6SHENZHEN LE JIA DA TECH CO LTD1
Top patents by PatentIndex Score
15 records- 0177USD1015407SProjection screenSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2022·Granted Feb 20, 2024·6 cites·1 claims
- 0272US10975284B2Well cementation working solution prepared from red mud, slag and waste drilling fluidsUNIV SOUTHWEST PETROLEUM·Filed 2018·Granted Apr 13, 2021·1 cites·14 claims
- 0367USD850516SProjectorSHENZHEN LE JIA DA TECH CO LTD·Filed 2017·Granted Jun 4, 2019·13 cites·1 claims
- 0464US12509621B2Method for preparing heat-conductive cement slurry for well cementationUNIV SOUTHWEST PETROLEUM·Filed 2023·Granted Dec 30, 2025·0 cites·9 claims
- 0560USD1034766SProjection screenSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2022·Granted Jul 9, 2024·2 cites·1 claims
- 0657USD1015752SPortable support curtainSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2021·Granted Feb 27, 2024·2 cites·1 claims
- 0755USD1068910SProjector standSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2023·Granted Apr 1, 2025·1 cites·1 claims
- 0855US11786880B2Preparation method of the microcapsules for low-temperature well cementation to be used to control cement hydration heatUNIV SOUTHWEST PETROLEUM·Filed 2022·Granted Oct 17, 2023·0 cites·2 claims
- 0953USD1028064SProjection screen with standSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2023·Granted May 21, 2024·1 cites·1 claims
- 1053US11603488B2Process for preparing metal-chelate retarder by sol-gel methodUNIV SOUTHWEST PETROLEUM·Filed 2020·Granted Mar 14, 2023·0 cites·3 claims
- 1147US11345844B2Oil well cement slurry high-temperature suspension stabilizer prepared from oil-based shale drilling cuttingsUNIV SOUTHWEST PETROLEUM·Filed 2020·Granted May 31, 2022·0 cites·4 claims
- 1240US10876945B2Method for evaluating breakage strength of first and second cemented surfaces of well cementation under dynamic loadUNIV SOUTHWEST PETROLEUM·Filed 2018·Granted Dec 29, 2020·0 cites·3 claims
- 1338USD1067308SProjector screenSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2023·Granted Mar 18, 2025·0 cites·1 claims
- 1437USD1079789SProjection screenSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2023·Granted Jun 17, 2025·0 cites·1 claims
- 1537USD1060479SProjection screenSHENZHEN LE JIA DA SCIENCE AND TECH CO LTD·Filed 2023·Granted Feb 4, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →