ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,769, issued on May 20, was assigned to SUMMIT CASING SERVICES LLC (Fort Worth, Texas).
"Delayed opening fluid communication valve" was invented by Colten T. Francis (Aledo, Texas), Ian Beckett (Aledo, Texas) and Andrew M. Eldridge (Fort Worth, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A casing valve, comprising a first component configured to connect to a casing string, a second component configured to connect to the casing string, a mandrel disposed between the first component and the second component, the mandrel having a plurality of ports, a housing disposed outside of the mandrel, the housing having a plurality of ports, a piston dis...