ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,463, issued on May 20, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Methods and apparatus for retrieving a wireline using a release sub" was invented by Muhammad Imran Javed (Abqaiq, Saudi Arabia) and Akram R. Al-Barghouti (Dammam, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, devices, and systems are discussed. In some cases, the methods may include conveying a downhole tool into a wellbore. The downhole tool includes a release sub disposed between a first section of the downhole tool and a second section of the downhole tool. The release sub includes: a first portion including a threaded pin and an ele...