US Patent Issued to SK INNOVATION, SK ENMOVE on April 21 for "Method of producing lube base oil and lube base oil produced thereby" (South Korean Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,755, issued on April 21, was assigned to SK INNOVATION Co. LTD. (Seoul, South Korea) and SK ENMOVE Co. LTD. (Seoul, South Korea).

"Method of producing lube base oil and lube base oil produced thereby" was invented by Young Wook Jeon (Daejeon, South Korea), Jun Soo Park (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 producing a lube base oil mixture includes providing a waste lubricant-derived refined oil fraction derived from a waste lubricant containing a lube base oil of API Group I or II. The waste lubricant-derived refined oil fraction contains an ionic refined oil, a f...