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USPTO Patent Rankings Data through Sept 30, 2025
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Xiaowang Dai — 4 Patents in 2021

YCYangtze Memory Technologies Co.: 4 patents #36 of 209Top 20%
Hubei, CN: #23 of 354 inventorsTop 7%
Overall (2021): #37,516 of 548,734Top 7%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11145666 Staircase structure for memory device Zhenyu Lu, Jun Chen, Jifeng Zhu, Qian Tao, Yu Ru Huang +6 more 2021-10-12
11133325 Memory cell structure of a three-dimensional memory device Zhenyu Lu, Jun Chen, Qian Tao, Yushi Hu, Jifeng Zhu +4 more 2021-09-28
11101276 Word line contact structure for three-dimensional memory devices and fabrication methods thereof Jifeng Zhu, Zhenyu Lu, Jun Chen, Si Ping Hu, Lan Yao +4 more 2021-08-24
10937806 Through array contact (TAC) for three-dimensional memory devices Qian Tao, Yushi Hu, Zhenyu Lu, Li Xiao, Yu Ting Zhou +8 more 2021-03-02