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USPTO Patent Rankings Data through Dec 31, 2025
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Chang Sun — 4 Patents

COConviva: 2 patents #31 of 60Top 55%
Taipei, TW: #5,081 of 24,966 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Chang Sun has been granted 4 US patents while listed as an inventor at Conviva. The first was granted in 1997 and the most recent in November 2024. Chang Sun ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Chang Sun in Taipei, TW.

Patents per Year

Patents granted per year, 1997 to 2024Bar chart with a peak of 2 patents in 1997.peak 21997: 2 patents19972023: 1 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12155709 Asset metadata service Lei Cao, Ningning Hu 2024-11-26
11838343 Asset metadata service Lei Cao, Ningning Hu 2023-12-05
D384757 Decorative lighting strip — 1997-10-07
D384758 Decorative lighting strip — 1997-10-07

Frequent Collaborators

Lei Cao2 shared
Ningning Hu2 shared

Nearby-Ranked Inventors

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Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4