ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,130, issued on Aug. 11, was assigned to CEFO Co. Ltd. (Seoul, South Korea).

"Cell cryopreservation device" was invented by Hyun Sook Park (Seoul, South Korea) and Sunray Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a cell cryopreservation device, and can comprise: a first housing for accommodating a plurality of test tubes; a second housing for covering the first housing; center support ribs extended upward from the inner bottom surface of the first housing to come in contact with and support the side surfaces of the surrounding test tubes; and side support ribs extended from the inner wall ...