Inventor · disambiguated record

Changdong Han

Also filed as: HAN CHANGDONG

1 granted patent·1 citations·filing 2019–2019

15Inventor score

Technology areasG06F

Files withALIBABA GROUP HOLDING LTD1

Top patents by PatentIndex Score

1 record

0164US11250080B2Method, apparatus, storage medium and electronic device for establishing question and answer systemALIBABA GROUP HOLDING LTD·Filed 2019·Granted Feb 15, 2022·1 cites·20 claims

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