ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,229, issued on Dec. 2, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"Devices, systems, and methods of using smart fluids to control molecule speeds" was invented by Daniel Bedau (San Jose, Calif.) and Justin P. Kinney (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are devices, systems, and methods for controlling the movement of at least one molecule in a first fluid having a first viscosity. The system includes a fluid region defined by at least one fluid-retaining surface, a field-responsive fluid situated in the fluid region, and a field generator for generating a magnetic or electric fie...