US Patent Issued to SPHEBIO on July 21 for "Method for preparing cellular spheroid and method for producing extracellular vesicles by using cellular spheroid prepared by such method" (South Korean Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,848, issued on July 21, was assigned to SPHEBIO Co. LTD. (Pohang-si, South Korea).

"Method for preparing cellular spheroid and method for producing extracellular vesicles by using cellular spheroid prepared by such method" was invented by Keunsun Ahn (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed is a method of producing extracellular vesicles by using a cellular spheroid prepared by: preparing a first composition comprising cells and a heat-sensitive hydrogel dissolved in an ionic solution; dispensing the first composition drop by drop into a second hydrogel; forming core-shell structures by causing a reaction betwe...