US Patent Issued to E Ink on Oct. 28 for "Charge control agents and particle dispersions including the same" (Massachusetts, Maine Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,598, issued on Oct. 28, was assigned to E Ink Corp. (Billerica, Mass.).

"Charge control agents and particle dispersions including the same" was invented by Eugene Bzowej (Reading, Mass.), John L. Marshall (Sedgwick, Maine), Stephen J. Telfer (Arlington, Mass.) and Brandon Macdonald (Melrose, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Mixtures are disclosed containing a plurality of charged pigment particles and one or more charge control agents. At least one of the charge control agents has a chemical structure that includes a cationic head group, such as an ammonium cation or an iminium compound, and a non-ionic, polar functional group, o...