Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ching-Ray Chang — 8 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
NUNational Taiwan University: 2 patents #404 of 2,195Top 20%
NUNational Tsing Hua University: 2 patents #327 of 2,036Top 20%
ETEtron Technology: 1 patents #75 of 145Top 55%
Taipei, TW: #2,357 of 24,966 inventorsTop 10%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Ching-Ray Chang has been granted 8 US patents while listed as an inventor at Unknown. The first was granted in 2010 and the most recent in November 2022. Ching-Ray Chang ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Ching-Ray Chang in Taipei, TW.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11514189 Data collection and analysis method and related device thereof Yao-Tung Tsou, Hao Zhen, Sy-Yen Kuo 2022-11-29
10245570 Multi-channel magnetic control system Zung-Hang WEI, Jen-Hwa Hsu, Hao Huang 2019-04-02
9709640 Single bridge magnetic field sensor Jen-Tzong Jeng, Jen-Hwa Hsu, Chih-Cheng Lu, Bor-Lin Lai, Van-Su Luong 2017-07-18
9625537 Magnetic field sensing device and method Jui-Hang Chang 2017-04-18
9541527 Magnetic device with three-dimensional wave structure and application for biomedical detection Zung-Hang WEI, Jen-Hwa Hsu, Hao Huang 2017-01-10
8337637 Method for ordering a disordered alloy and method for making a perpendicular magnetic recording medium Fu-Te Yuan, An-Cheng Sun, Jen-Hwa Hsu 2012-12-25
7993766 Perpendicular magnetic recording medium and method for fabricating the same An-Cheng Sun, Po-Cheng Kuo, Jen-Hwa Hsu, Huei-Li Huang 2011-08-09
7838135 Heat assisted magnetic recording medium and method for fabricating the same Po-Cheng Kuo, Yen-Hsiang Fang, An-Cheng Sun, Tao Yang, Chun-Yuan Chou 2010-11-23