Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Qingdao, CN ranks #537 worldwide for total patents filed all time, with 6,296 patents from 2,087 inventors. Leading employers of inventors based in Qingdao, CN include Qingdao Haier Joint Stock Co., Qingdao University Of Technology, China Petroleum & Chemical.

Showing 1–50 of 2,087 inventors

Rank Inventor Primary Company Patents
1 Hao Zhang Qingdao Haier Joint Stock Co. 88
2 Changhe Li Qingdao University Of Technology 59
3 Enpin Xia Qingdao Haier Joint Stock Co. 57
#4 Min Yang Qingdao University Of Technology 51
#5 Weimin Yang China Petroleum & Chemical 42
#5 Wenhui Xu Byd Company Limited 42
#7 Jin-Fa Zhang Delta Electronics (Shanghai) Co. 37
#8 Jinsheng Sun China University Of Petroleum (East China) 34
#9 Teng Gao Qingdao University Of Technology 32
#10 Jun Wu Qingdao Haier Drum Washing Machine Co. 30
#11 Mingzheng Liu Qingdao University Of Technology 28
#12 Zhen Liu Beyond Innovation Technology Co. 27
#12 Caili Dai China University Of Petroleum (East China) 27
#14 Youliang Tian Hisense Laser Display Co. 26
#14 Bingheng Lu Qingdao University Of Technology 26
#16 Xueli Cheng Qingdao Haier Joint Stock Co. 25
#16 Chunyang Li Qingdao Haier Joint Stock Co. 25
#18 Jianru Liu Qingdao Haier Joint Stock Co. 24
#18 Baojiang Sun China University Of Petroleum (East China) 24
#20 Yuejun Zhang Ningbo University 23
#20 Zhenguo Li Huawei 23
#20 Chunfeng Lao Qingdao Haier Washing Machine Co. 23
#20 Xianmin Zhang South China University Of Technology 23
#24 Kaihe Lv China University Of Petroleum (East China) 22
#24 Wenlong Liu Haier Smart Home Co. 22
#26 Lisheng Ji Qingdao Haier Joint Stock Co. 21
#26 Yixin Zhang Qingdao Sentury Tire Co. 21
#26 Wendong Wang Nokia Technologies Oy 21
#26 Xu Sun Byd Company Limited 21
#30 Dongfang Li Superd Co. 20
#30 Guangrui Wu Huawei 20
#32 Zhiqiang Gong Qingdao Richriver Electrics Co. 19
#32 Guoming Zhao Institute Of Pharmacology And Toxicology, Academy Of Military Medical Sciences 19
#34 Jun Wang Qingdao Haier Air-Conditioning Electronic Co. 18
#35 Xianbin Huang China University Of Petroleum (East China) 17
#35 Yuanyu Tian China University Of Petroleum (East China) 17
#35 Ziguo Wang Linhai Guokang Leisure Products Co. 17
#35 Yunliang Tan Shandong University Of Science And Technology 17
#35 Jie Xu Ningbo Sanhan Alloy Material Co. 17
#35 Kai Liu Haier Smart Home Co. 17
#35 Shaojiang Cheng Qingdao Haier Air-Conditioning Electronic Co. 17
#35 Hai Shu Qingdao Haier Washing Machine Co. 17
#35 Zhicheng Song Hisense Electric Co. 17
#35 Yonghong Liu China University Of Petroleum (East China) 17
#45 Yingyun Qiao China University Of Petroleum (East China) 16
#45 Jintang Wang China University Of Petroleum (East China) 16
#45 Lei LIAN Qingdao Kingagroot Chemical Compound Co. 16
#48 YONG-JUN YU Samsung 15
#48 Zhenbo Li Ludong University 15
#48 Junfei Wu Broadcom 15