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USPTO Patent Rankings Data through Sept 30, 2025
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Chi-Ho Chang — 4 Patents in 2017

UEU&U Engineering: 3 patents #1 of 10Top 10%
AOAu Optronics: 1 patents #83 of 341Top 25%
Overall (2017): #50,144 of 506,227Top 10%
4 Patents 2017

Issued Patents 2017

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9678196 Sensor for detecting parking lot Chien-Pien Hsieh, Chao-Fu Chiang, Ping-Chang Tsao 2017-06-13
9614291 Two-dimensional antenna array, one-dimensional antenna array and single differential feeding antenna Chun-Hao Hu, Yo-Sheng Lin, Ping-Chang Tsao 2017-04-04
9590302 Active antenna module Ren-Her Chen, Ping-Chang Tsao, Jen-Chih Huang, Guo-Zhong Lu, Yun-Chun Sung 2017-03-07
9581823 2D/3D switchable display device and manufacturing method thereof Ping-Feng Yu 2017-02-28