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USPTO Patent Rankings Data through Sept 30, 2025
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Yo-Lun Chang

Fangshankeng, TW: #2 of 2 inventorsTop 100%
Overall (2022): #199,495 of 548,613Top 40%
1 Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11236967 Pistol frame Chen-Hung Tai, Hwa-Nung Lee 2022-02-01