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Qingfeng Yi — 1 Patent

KCKingfa Sci. & Tech. Co.: 1 patents #33 of 88Top 40%
Tangxia, CN: #2,832 of 5,101 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Qingfeng Yi has been granted 1 US patent while listed as an inventor at Kingfa Sci. & Tech. Co.. All of these patents were granted in 2015. Qingfeng Yi ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Qingfeng Yi in Tangxia, CN.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9051454 Heat-resistant polyamide composition and application thereof Sujun JIANG, Jiehong Mai, Zhingqiang Jiang, Jieming Long, Xia Yan +2 more 2015-06-09

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Kira Astakhova1
Amir EISEN1