Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Changsha, CN ranks #4,173 worldwide for total patents filed all time, with 676 patents from 29 inventors. Leading employers of inventors based in Changsha, CN include Semiconductor Manufacturing International (Shanghai), Beijing Boe Optoelectronics Technology Co., Wuhan University.

Showing 1–29 of 29 inventors

Rank Inventor Primary Company Patents
1 Wei Wang Semiconductor Manufacturing International (Shanghai) 85
2 Xi Li Beijing Boe Optoelectronics Technology Co. 83
3 Hui Zhang Wuhan University 70
#4 Yuanyuan Wang Infinitus (China) Company 64
#5 Quan Zhou Disney 58
#6 Yi-Min Jiang Synopsys 34
#7 Fang Wen Microsoft 29
#8 Ting Chen Apple 27
#9 Xing Luo Baidu Online Network Technology (Beijing) Co. 26
#10 Changlin Pang Minipumps 22
#11 Qing Zhou General Motors 21
#12 Zhibin Xiao Alibaba 18
#12 Yujia Zhai Applied Materials 18
#14 Wei Geng Awarepoint 16
#15 Lizhong DAI Gen-Probe Incorporated 11
#16 Qifeng Chen Intel 9
#16 Hongying Li Central South University 9
#16 Meng Zou Tsinghua University 9
#16 Li-Jen Feng Chuandong Magnetic Electronics Co. 9
#16 Fan Xiao Hunan University 9
#21 Xiaozhou Ye Beijing Aili Technology Co. 8
#22 Xiang Qiu Synopsys 7
#22 Zhiyong Gao Siemens Medical Solutions Usa 7
#22 Siqi Fan Qualcomm 7
#25 Yongdong Liu Hunan Sany Intelligent Control Equipment Co. 4
#25 Wei Chao Pioneer Pet Products 4
#25 Zhengqing Chen Hunan University 4
#25 Qingchun Hu Imerys Filtration Minerals 4
#25 Yuhang Yang Lsi Medience 4

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