ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,581, issued on April 21, was assigned to BreathCore Inc (Orinda, Calif.).
"Exercise device" was invented by Nirinjan Bikko (Orinda, Calif.) and Tyler C. Grudowski (Chicago).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exercise device having an insert slidably coupled within a base; a compression element (e.g., a helical spring) located within a cavity formed by the base and the insert; an extension element (e.g., an elastic band) extending through the cavity; and opposing handles connected to opposing ends of the extension element. When the device is in its equilibrium state with no external longitudinal forces applied to the handles, the sprin...