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USPTO Patent Rankings Data through Sept 30, 2025
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Cheng-Sung Chen — 4 Patents in 2018

FSFairchild Semiconductor: 2 patents #4 of 62Top 7%
ONonsemi: 2 patents #75 of 374Top 25%
Overall (2018): #47,946 of 503,207Top 10%
4 Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10110137 Automatic control of synchronous rectifier turn-off threshold SangCheol Moon, Hangseok Choi, Chi-Chen Chung 2018-10-23
10027235 Self-tuning adaptive dead time control for continuous conduction mode and discontinuous conduction mode operation of a flyback converter Hangseok Choi, Lei Chen 2018-07-17
10008950 Adaptive turn-off trigger blanking for synchronous rectification Hangseok Choi, Lei Chen 2018-06-26
9991810 Gate pre-positioning for fast turn-off of synchronous rectifier Hangseok Choi, Wei-Hsuan Huang 2018-06-05