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:
Feb. 25, 2003
Filed:
Jan. 16, 2002
Pinyen Lin, Rochester, NY (US);
David H. Pan, Rochester, NY (US);
Chieh-Min Cheng, Rochester, NY (US);
Adam Bush, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electrophoretic display liquid composition for use in an electrophoretic display device that has a multiplicity of individual reservoirs, each containing the display liquid of at least two sets of particles dispersed in a transparent liquid system, the at least two sets of particles exhibiting different, contrasting color and different charging properties from each other, and at least one of the sets of particles containing flow aid particles as additives upon an external surface of the particles. Preferred flow aid additives include silica and titania particles.