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

Hui-Pu Chang — 4 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
KAKapito: 3 patents #5 of 11Top 50%
NUNational Central University: 1 patents #242 of 733Top 35%
Hsinchu, TW: #4,592 of 13,380 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Hui-Pu Chang has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 2014 and the most recent in August 2025. Hui-Pu Chang ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Hui-Pu Chang in Hsinchu, TW.

Patents per Year

Patents granted per year, 2014 to 2025Bar chart with a peak of 1 patents in 2014.peak 12014: 1 patents20142021: 1 patents20212024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12391504 Motor controlling system for application in apparatus having roll-to-roll mechanism Feng-Tso Sun, Yi-Ting Yeh, Feng Sun, Po-Han Chou, Yun Chen +1 more 2025-08-19
12111268 Surface inspection system for foil article Feng-Tso Sun, Yi-Ting Yeh, Feng Sun, Shiang-En Hong, Po-Han Chou +2 more 2024-10-08
11203494 System and method for sorting moving objects Feng-Tso Sun, Yi-Ting Yeh, Feng Sun 2021-12-21
8892377 Digital programmable load measurement device Shyh-Biau Jiang 2014-11-18