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US Patent 11661972 PDM transmission with ball-CV torque transfer
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Patent
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Date Filed
February 21, 2020
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Date of Patent
May 30, 2023
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Patent Application Number
16797178
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Patent Citations
US Patent 8215841 Bearing assembly for use in earth drilling
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US Patent 8894497 Sliding ball type constant velocity joint for vehicle
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US Patent 8900062 Driveshaft assembly for a downhole motor
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US Patent 8915788 Universal joint for a downhole drilling motor
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US Patent 9915106 U-joint for a downhole motor drive shaft
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US Patent 10221894 Universal joint
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US Patent 10408274 Universal driveshaft assembly
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US Patent 10316895 Universal joint
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US Patent 10975623 High torque constant velocity joint for downhole drilling power transmission
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US Patent 7186182 Drive line for down hole mud motor
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•••
Patent Jurisdiction
United States Patent and Trademark Office
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Patent Number
11661972
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Patent Primary Examiner
Greg Binda
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CPC Code
F16D 3/185
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F16D 3/22
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F16D 3/221
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E21B 17/05
0
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