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USPTO Patent Rankings Data through Dec 31, 2025
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Wei Chang — 9 Patents

WIWiwynn: 3 patents #15 of 151Top 10%
ICInstitute Of Nuclear Energy Research, Atomic Energy Council: 1 patents #203 of 474Top 45%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Wei Chang has been granted 9 US patents while listed as an inventor at Wiwynn. The first was granted in 2016 and the most recent in April 2025. Wei Chang ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Wei Chang in New Taipei, IL, TW.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12278631 Main board, hot plug control signal generator, and control signal generating method thereof Yu-Chun Chen, Nan-Huan Lin, Chung-Hui Yen, Shi-Rui Chen 2025-04-15
12157536 Portable conveyance with dual function rack and stand Robert McCormick, Zhiming Ye, Xiaojun Wang, Liuhai Zhao, Zhenghua Kong 2024-12-03
12047070 Main board, hot plug control signal generator, and control signal generating method thereof Yu-Chun Chen, Nan-Huan Lin, Chung-Hui Yen, Shi-Rui Chen 2024-07-23
11591038 Portable conveyance with dual function rack and stand Robert McCormick, Zhiming Ye, Xiaojun Wang, Liuhai Zhao, Zhenghua Kong 2023-02-28
11334517 Electronic device for hot plugging detection Yu-Chun Chen, Pei-Zhen Tsai, Chung-Hui Yen 2022-05-17
11214326 Footrest with integrated tow handle for portable conveyance Zhenghua Kong, Kai Wang, Robert McCormick 2022-01-04
10267707 Rotatable fixture Tsu-Jen Wang 2019-04-23
9586643 Portable conveyance with towing guide assembly Robert McCormick, Zhenghua Kong, Yazhao Wang, Kai Wang 2017-03-07
9376158 Portable conveyance with towing guide assembly Robert McCormick, Zhenghua Kong, Yazhao Wang, Kai Wang 2016-06-28

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