ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,387, issued on July 29.

"Portable and compact hyperbaric chamber" was invented by Bruce Elgin McKeeman (Mound, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A portable and compact hyperbaric chamber includes an inflatable chamber, a weighted base, a dump valve, at least one auxiliary port, an external pressure gage, a plurality of fill valves, and a plurality of pressure relief valves. The access opening is integrated into a lateral panel of the inflatable chamber and provide in and out access to the inflatable chamber. The weighted base is mounted to the base panel and functions as a stable base. The plurality of fill valves is in fluid comm...