ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,911, issued on May 27, was assigned to NINE DOWNHOLE TECHNOLOGIES LLC (Houston).
"Multi-cycle counter system" was invented by Viggo Brandsdal (Ytre Arna, Norway) and Geir Aasheim (Ytre Arna, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosed technology relates to a downhole tool activation device, and a method of using the device, where the valve is configured to open when the counter device has moved an activation distance in an activation direction, a piston engaged with the counter device, having a wellbore pressure from a fluid source applied to a first side, and a pressure in a fluid reservoir applied to the second side...