Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chien-Ken Chang — 1 Patent

DEDelta Electronics: 1 patents #1,366 of 2,746Top 50%
Daxi District, TW: #1,632 of 2,811 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Chien-Ken Chang has been granted 1 US patent while listed as an inventor at Delta Electronics. All of these patents were granted in 2008. Chien-Ken Chang ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Chien-Ken Chang in Daxi District, TW.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7345709 Method and apparatus for displaying component video signals Chung-Yi Yang, Chun-Hao Lee, Bao Liu 2008-03-18