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USPTO Patent Rankings Data through Dec 31, 2025
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Annan Guan — 1 Patent

KCKingfa Sci. & Tech. Co.: 1 patents #33 of 88Top 40%
Longbeilingcun, CN: #3,049 of 5,734 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Annan Guan has been granted 1 US patent while listed as an inventor at Kingfa Sci. & Tech. Co.. All of these patents were granted in 2025. Annan Guan ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Annan Guan in Longbeilingcun, CN.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12428528 Reinforced polypropylene material and preparation method thereof Zhanquan Lu, Xianbo Huang, Nanbiao YE, Shuwen Cheng, Lewen Liu +1 more 2025-09-30

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