Inventor · disambiguated record
Zhihua Chang
Also filed as: CHANG ZHIHUA
3 granted patents·2 pending applications·0 citations·filing 2018–2022
40Inventor score
Top patents by PatentIndex Score
5 records- 0154US10877968B2Systems and methods for data processingBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2019·Granted Dec 29, 2020·0 cites·20 claims
- 0253US2021073229A1Systems and methods for data processingBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2020·Application pending·0 cites
- 0344US10990500B2Systems and methods for user analysisBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2020·Granted Apr 27, 2021·0 cites·20 claims
- 0436US12373486B2Audio recognition method, electronic device and storage mediumBEIJING XIAOMI MOBILE SOFTWARE CO LTD·Filed 2022·Granted Jul 29, 2025·0 cites·11 claims
- 0536US2018307720A1System and method for learning-based group taggingBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →