ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,588, issued on Nov. 4, was assigned to E Ink Corp. (Billerica, Mass.).
"Benefit agent delivery system using electroplating" was invented by Lei Liu (Fremont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A benefit agent delivery system whereby benefit agents can be delivered on demand. The benefit agent delivery system comprises a first electrode layer, a microcell layer, a sealing layer, and a second electrode layer. The microcell layer comprises a plurality of microcells, each microcell of the plurality of microcells containing a carrier and a benefit agent, and a metallic layer spanning an opening of each microcell of the plurality of micr...