Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chang-Yi Chen — 3 Patents in 2021

RTRichwave Technology: 2 patents #4 of 28Top 15%
Overall (2021): #88,237 of 548,734Top 20%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11146218 Amplification circuit Chih-Sheng Chen 2021-10-12
11008360 Indoleacetic acid derivative and preparation method and pharmaceutical use thereof An Liu, Jintang Cheng, Cong Guo, Jun Zhang 2021-05-18
10931239 Amplification circuit Chih-Sheng Chen 2021-02-23