CH

Changdong Han

AL Alibaba: 1 patents #88 of 376Top 25%
Overall (2022): #500,863 of 548,613Top 95%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11250080 Method, apparatus, storage medium and electronic device for establishing question and answer system Qiang Zhang, Xiaojun Wang, Chuan Qin, Hanyang Zeng 2022-02-15