Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
YingQing Xu0
Daniel M. Cousin0
Eugene Stolboushkin0
Date of Patent
March 21, 2023
0Patent Application Number
172362630
Date Filed
April 21, 2021
0Patent Citations
Patent Primary Examiner
CPC Code
A frac dart including a pressure housing, a mechanical sensor disposed through the pressure housing, a contactor inside the pressure housing and in operable communication with the mechanical sensor, and an electrical counter disposed in the pressure housing and responsive in increments to movement of the mechanical sensor that closes the contactor.
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