ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,726, issued on May 20, was assigned to Energy Vault Inc. (Westlake Village, Calif.).
"Liquid storage tank and method of producing the same" was invented by Mauro Pedretti-Rodi (Canobbio, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid storage tank with a storage unit has a flexible wall assembled from liquid-impermeable, flexible membrane sections. Due to their dimensions, these membrane sections give the liquid storage tank a predetermined operational shape when filled with the target amount of liquid. In the vertical operational position, this predetermined operational shape is drop-shaped, featuring an upper tip and a lower, b...