Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Chih-Ching Cheng — 30 Patents

HOHuga Optotech: 8 patents #2 of 42Top 5%
UCUnique Product & Design Co.: 7 patents #2 of 5Top 40%
TSMC: 6 patents #3,824 of 12,232Top 35%
BJBaby Jogger: 4 patents #3 of 31Top 10%
NUNational Cheng Kung University: 1 patents #348 of 1,128Top 35%
XCXiamen San'An Optoelectronics Co.: 1 patents #71 of 149Top 50%
XCXiamen Sanan Optoelectronics Technology Co.: 1 patents #109 of 181Top 65%
DBDynamic Brands: 1 patents #5 of 11Top 50%
EPEpistar: 1 patents #519 of 732Top 75%
KCKingstar Baby Carriage Co.: 1 patents #2 of 4Top 50%
Overall (All Time): #120,591 of 4,157,543Top 3%
30 Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
7973326 Semiconductor structure combination for epitaxy of semiconductor optoelectronic device Tzong-Liang Tsai 2011-07-05
7915605 LED packaged structure and applications of LED as light source Tzong-Liang Tsai 2011-03-29
7632035 Folding baby stroller 2009-12-15
7498607 Epi-structure with uneven multi-quantum well and the method thereof Tzong-Liang Tsai 2009-03-03
6374954 Baby walker speed control caster 2002-04-23