Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ruifeng Ma — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Laishui, CN: #228 of 497 inventorsTop 50%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Ruifeng Ma has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 2022. Ruifeng Ma ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ruifeng Ma in Laishui, CN.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11247270 Method for preparing vanadium and vanadium alloy powder from vanadium-containing materials through shortened process Na Wang, Xindong Wang, Ruiguo Bai, Chunliang Wu, Qichen Hu +1 more 2022-02-15