US Patent Issued to SK INNOVATION, SK ENMOVE on Sept. 23 for "Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,462, issued on Sept. 23, was assigned to SK INNOVATION Co. LTD. (Seoul, South Korea) and SK ENMOVE Co. LTD. (Seoul, South Korea).

"Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby" was invented by Young Wook Jeon (Daejeon, South Korea), Jun Soo Park (Daejeon, South Korea), Eun Kyoung Kim (Daejeon, South Korea) and Kyung Seok Noh (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocrackin...