The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2024
Filed:
Mar. 07, 2023
E Ink Corporation, Billerica, MA (US);
Stephen J. Telfer, Arlington, MA (US);
Rosa Casado, Middleton, MA (US);
Sergey Egorov, Nashua, NH (US);
Erin Criswell Chang, Bedford, MA (US);
Jay William Anseth, Canton, MA (US);
Ana L. Lattes, Newton, MA (US);
Lynne A. McCullough, Brooklyn, NY (US);
E Ink Corporation, Billerica, MA (US);
Abstract
A capsule comprising a capsule wall and an electrophoretic fluid encapsulated by the capsule wall. The capsule wall comprises a cross-linked nonionic, water-soluble or water-dispersible polymer. The electrophoretic fluid comprises a suspending fluid, first pigment particles, second pigment particles, and third pigment particles. In some embodiments, the electrophoretic fluid includes a fourth electrophoretic particle. The first, second, and third particles are electrically charged, suspended in the suspending fluid, and capable of moving through the suspending fluid upon application of an electric field to the capsule.