ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,503, issued on March 18, was assigned to Jun Seok Lee (Busan, South Korea).

"Screen exchange device, biological tissue size reduction system comprising same, biological tissue size reduction method using same, and method for separating target substance from relevant biological tissue" was invented by Jun Seok Lee (Busan, South Korea) and Hasim Eray Copcu (Izmir, Turkey).

According to the abstract* released by the U.S. Patent & Trademark Office: "A screen exchange device for reducing the size of a biological tissue according to one embodiment comprises: a disk comprising a plurality of screens each having at least one through-hole configured to reduce the size of a biological tis...