ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,694, issued on March 25, was assigned to University of Cincinnati (Cincinnati).
"Door control apparatus" was invented by Ou Ma (Maineville, Ohio), Samuel King (Florence, Ky.) and Yufeng Sun (Cincinnati).
According to the abstract* released by the U.S. Patent & Trademark Office: "A door control apparatus is provided. The door control apparatus comprises a processor, a frame that includes a top frame portion and a bottom frame portion, a door control arm that is integrated as part of the frame and configured to move vertically between the top frame portion and the bottom frame portion, the door control arm including a door handle contact protrusion having a curve shaped end part, ...