ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,418, issued on July 28, was assigned to Industry-Academic Cooperation Foundation, Yonsei University (Seoul, South Korea).

"Method for manufacturing a separation membrane based on a polar carbon nanotube dispersion and a polar one-dimensional carbon body" was invented by Daewoo Kim (Seoul, South Korea) and Yunkyu Choi (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a polar carbon nanotube dispersion which may be dispersed in a solvent at a high concentration, and a separator having improved filtration efficiency based on a polar carbon nanotube manufactured from the dispersion and a polar one-dimensional carbon body. A...