ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,389, issued on Feb. 17, was assigned to Participant Assistive Products (San Francisco).
"Wheelchair side plate" was invented by Ryota Yamada (Corona, Calif.) and George James King Jr. (San Francisco).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a wheelchair with a side plate that connects a seat and a backrest to the wheelchair frame and is configured to allow an inclination of a seat relative to the frame and an inclination of a backrest relative to the seat to be adjusted. The side plate may include a first hole configured to receive a first fastener connected to the seat. The first fastener can be inserted through the first hole and ...