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

Yi-Yang Chiu — 4 Patents

EPEpistar: 4 patents #251 of 732Top 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
Yi-Yang Chiu has been granted 4 US patents while listed as an inventor at Epistar. The first was granted in 2022 and the most recent in July 2025. Yi-Yang Chiu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Yi-Yang Chiu in Hsinchu, TW.

Patents per Year

Patents granted per year, 2022 to 2025Bar chart with a peak of 2 patents in 2024.peak 22022: 1 patents20222024: 2 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12364067 Semiconductor device Chun Lin, Jun Li, Chun-Wei Chang, Yi-Ming Chen, Chang-Hsiu Wu +3 more 2025-07-15
12125956 Semiconductor device and semiconductor component including the same Yu-Tsu LEE, Chun-Wei Chang, Min-Hao YANG, Wei-Jen Hsueh, Yi-Ming Chen +2 more 2024-10-22
12074252 Light-emitting device Chung-Hao WANG, Yu-Chi Wang, Yi-Ming Chen, Chun Lin 2024-08-27
11450787 Light-emitting device Chung-Hao WANG, Yu-Chi Wang, Yi-Ming Chen, Chun Lin 2022-09-20