ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,027, issued on April 7, was assigned to TENDO TECHNOLOGIES INC. (Princeton, N.J.).

"Device, system, and method for fluid mass determination" was invented by Marcus Hultmark (Princeton, N.J.), Yuyang Fan (Princeton, N.J.), Clay Byers (Princeton, N.J.) and Bayard G. Gardineer (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method are disclosed, that allow for the determination of a mass of a fluid within a container by first vibrating an external surface of a container, where the container contains a fluid (such as a compressed fluid, a gas, a liquid, a mixture of a gas and liquid, or a supercritical fluid). Then, vibratio...