ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,461, issued on June 24, was assigned to Beijing CytoNiche Biotechnology Co. Ltd. (Beijing).
"Three-dimensional culture method for large-scale preparation of stem cells" was invented by Xiaojun Yan (Beijing), Wei Liu (Beijing) and Kun Zhang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional culture method for large-scale preparation of stem cells, comprising a three-dimensional microcarrier-based cell resuscitation method, a three-dimensional microcarrier cell culture-based in situ passage method, a three-dimensional microcarrier in situ freeze preservation method for cells, a three-dimensional microcarrier cell adsorption cu...