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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
YF

Yi Fang — 3 Patents

OEOtis Elevator: 1 patents #966 of 1,840Top 55%
Amazon: 1 patents #10,717 of 19,158Top 60%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Yi Fang has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 2012 and the most recent in December 2021. Yi Fang ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Yi Fang in Shanghai, WA, CN.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11192756 Safety control device for handrail, conveyor system and safety control method for handrail Hai Cui, Qing Cheng, Xingsong Xu, Xinxiang Jiang, Jiaying CHEN +3 more 2021-12-07
11163669 Measuring test coverage during phased deployments of software updates Mustafa Ugur Torun, Xinghuang Xu, Arpit Panwar, Mihir Rajendrabhai Patel 2021-11-02 $448,078,000
8290985 Analyzing profiling data based on a rational model Long Cheng, Liang Qi, Yi Zhen Xu, Pu Yang 2012-10-16 $3,795,000