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USPTO Patent Rankings Data through Sept 30, 2025
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Chiwen Chang — 2 Patents in 2021

IBM: 2 patents #3,096 of 11,638Top 30%
Taipei, CA: #63 of 194 inventorsTop 35%
Overall (2021): #174,428 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11163988 Selective interactive event tracking based on user interest Ci-Wei Lan, Hao Chun Hung, Tsai-Hsuan Hsieh 2021-11-02
11151191 Video content segmentation and search Tsai-Hsuan Hsieh, Peter Wu, Allison Yu, Ching-Chun Liu, Kate Lin 2021-10-19