ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,751,872, issued on Oct. 6, was assigned to Tour Engineering LLC (Golden, Colo.).

"Powered track attachment for wheelchair" was invented by Daniel Livingston (Golden, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powered track attachment for a wheelchair is disclosed. In an example, the powered track attachment includes a frame supporting an electric motor. A wheel platform is attached to the frame and supports wheels on the wheelchair. At least one track system is provided having a plurality of individual track members. A majority of the plurality of individual track members have protrusions formed thereon. The plurality of individual track memb...