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USPTO Patent Rankings Data through Sept 30, 2025
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Ruifeng Bai — 2 Patents

Wufendi, CN: #1 of 3 inventorsTop 35%
Overall (All Time): #1,725,270 of 4,157,543Top 45%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12359513 Hydraulic collapsible rotary stand for wireline coring underground drill rig — 2025-07-15
10364628 Use of pre-stressed steel strand in the procedure of multi-angle drilling coring — 2019-07-30

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