ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,658, issued on May 19, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Super absorbent polymer" was invented by Heechang Woo (Daejeon, South Korea), Sung Soo Park (Daejeon, South Korea) and Junwye Lee (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure herein relates to a super absorbent polymer, and more particularly, to a super absorbent polymer exhibiting excellent absorption behavior with respect to water having a low ion concentration and a low electrical conductivity, and particularly, having quick initial absorption speed, and a large maximum absorption capacity."
The patent was filed on Sept. 24, 2...