ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,258, issued on Feb. 3, was assigned to Gravitas Medical Inc. (Berkeley, Calif.).

"Methods and apparatus for accessing and monitoring the gastrointestinal tract" was invented by Saheel Sutaria (El Cerrito, Calif.), Daniel R. Burnett (San Francisco), Michael Baycura (San Francisco), David Thompson (Dana Point, Calif.), Arthur Spivy (Vienna, Va.), Elliott Bennett-Guerrero (Setauket, N.Y.), Sam Radochonski (San Francisco) and Nicholas Mercer (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for accessing and monitoring the gastrointestinal tract are described herein. One variation of a feeding tube system may generally c...