ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,439, issued on May 20, was assigned to Tung Keng Enterprise Co. Ltd (Taichung, Taiwan).
"Drive wheel for wheelchair and quick-releasable drive wheel assembly" was invented by Chia-Yen Huang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive wheel for a wheelchair includes a wheel hub motor, wherein the wheel hub motor has a connecting structure and an output end at a side that is opposite to the connecting structure. The output end is engaged with a wheelchair wheel. The wheel hub motor is surrounded by a receiving case. The receiving case has a control terminal block that is electrically connected to a battery module and a con...