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:
Mar. 08, 2011
Filed:
Jul. 09, 2007
Charles Howie Honeyman, Roslindale, MA (US);
Thomas H. Whitesides, Somerville, MA (US);
Michael D. Walls, Dorchester, MA (US);
Charles Howie Honeyman, Roslindale, MA (US);
Thomas H. Whitesides, Somerville, MA (US);
Michael D. Walls, Dorchester, MA (US);
E Ink Corporation, Cambridge, MA (US);
Abstract
An electrophoretic medium comprises a fluid and a plurality of electrically charged particles disposed in the fluid and capable of moving therethrough on application of an electrical field to the medium. Each of the charged particles has a polymer coating comprising a first group. A polymer is dispersed in the fluid, this polymer having a plurality of second groups capable of attracting the first groups on the particles so that the polymer in the fluid forms a complex with the electrophoretic particles.