ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,171, issued on Nov. 4, was assigned to HANWHA SOLUTIONS Corp. (Seoul, South Korea).
"Physical foaming process using foaming press" was invented by Seong Soo Bae (Daejeon, South Korea), Chul Ee Kang (Daejeon, South Korea), Sang Jin Lee (Daejeon, South Korea) and Jae Hyeok Lee (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method preparing a highly functional foam by a physical foaming process (physical blowing agent-based foaming) used to prepare a midsole of a shoe, and relates to a technology that is environmentally friendly because a chemical foaming agent is not used and is capable of prepar...