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Yongzhong Cai

TB Taurex Drill Bits: 1 patents #6 of 12Top 50%
Overall (All Time): #2,522,369 of 4,157,543Top 65%
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Patent #TitleCo-InventorsDate
12065884 Manufacture of roller cone drill bits Dongze Yang, Yuan Yi, Dustin Lyles, Terry Vance Morris 2024-08-20