ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,321, issued on June 3, was assigned to SEMES Co. LTD. (Cheonan-si, South Korea).
"Transport system in fabrication facility" was invented by Sang Pyo Jun (Cheonan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transport system in a fabrication facility includes a driving unit moving along a driving rail, and a steering unit selectively contacting a steering guide rail at a branching part where the driving rail branches off. The steering unit includes horizontal steering wheels contacting a vertical guide part of the steering guide rail, and vertical steering wheels contacting a horizontal guide part of the steering guide rail."
The ...