ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,564, issued on Oct. 6, was assigned to YUJOO Co. LTD. (Busan, South Korea).
"Method for constructing concrete block structure" was invented by Sangki Kim (Busar, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, a first concrete block is installed in a state in which a tubular waterproof membrane and a guide pipe are temporarily coupled to the first concrete block, then a second concrete block is installed, and subsequently concrete is poured into the tubular waterproof membrane and the guide pole is removed to form a concrete column, thereby allowing the concrete column to be connected to a body of the first conc...