Inventor · disambiguated record
Changhai Yan
Also filed as: YAN CHANGHAI
1 granted patent·3 pending applications·0 citations·filing 2017–2023
7Inventor score
Files withALIBABA GROUP HOLDING LTD2NANTONG CHANG RONG MECH AND ELECTRICAL CO LTD1YUANLONG SHANGHAI BIOTECHNOLOGY CO LTD1
Top patents by PatentIndex Score
4 records- 0140US10902030B2User request processing method and deviceALIBABA GROUP HOLDING LTD·Filed 2018·Granted Jan 26, 2021·0 cites·17 claims
- 0239US2018078985A1Method for pressing groove section with bending angle smaller than or equal to 90 degreesNANTONG CHANG RONG MECH AND ELECTRICAL CO LTD·Filed 2017·Application pending·0 cites
- 0333US2025229045A1Disposable angle-adjustable visual bronchial blockerYUANLONG SHANGHAI BIOTECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 0423US2020233712A1Data Processing Method, Apparatus, Storage Medium, Processor, and SystemALIBABA GROUP HOLDING LTD·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →