ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,994, issued on March 17, was assigned to Dephy Inc..

"Lower limb exoskeleton" was invented by Luke Mooney (Westford, Mass.), Jean-Francois Duval (Belmont, Mass.), Nicholas Benz (Belmont, Mass.), Jonathan Cummings (Concord, Mass.) and William Marvin (Canton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for an active exoskeleton boot is provided. The apparatus can include a foot plate disposed within a boot of a user. The apparatus can include a first adapter extending from a side surface of the foot plate having a slot and an actuator module comprising a chassis and a post, and the post coupled to the chassis. The apparatus can ...