ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,971, issued on July 29, was assigned to OPTIMUM PETROLEUM SERVICES INC. (Calgary, Canada).
"Downhole pressure wave generating device" was invented by James G. Gettis (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for generating pressure waves in a well or a wellbore is described. The device includes a housing containing an impact-generating mechanism for generating the pressure waves and a connector for connecting the housing to a conveyor for transporting the device to any desired location within the well or the wellbore. The device may be used for a number of downhole applications such as cleaning perforations, fracturing...