ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,004, issued on Feb. 18, was assigned to CAMERON INTERNATIONAL Corp. (Houston).
"Wellhead assembly and test sealing architecture" was invented by Edward Ganzinotti III (Houston), Craig Cotton (Cypress, Texas), Pheng Aun Soh (Singapore) and Juan Gonzalez (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wellhead assembly with an external test port for testing a primary seal at an interface of a wellhead and a base. The assembly includes unique architecture with a secondary seal provided adjacent the primary. In this manner, testing of the primary seal from an external location may proceed without concern over a false indication of primary seal...