ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,272, issued on July 29, was assigned to California Institute of Technology (Pasadena, Calif.).

"Gas-filled structures and related compositions, methods and systems to image a target site" was invented by Anupama Lakshmanan (Pasadena, Calif.), Arash Farhadi (Pasadena, Calif.), Suchita P. Nety (Sunnyvale, Calif.), Raymond W. Bourdeau (Watertown, Mass.) and Mikhail Shapiro (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "Gas vesicles, protein variants and related compositions methods and systems for singleplexed and/or multiplexed ultrasound imaging of a target site in which a gas vesicle provides contrast for the imaging which is modifiable...