U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Electrophoretic display device

Patent 8137900 Issued on March 20, 2012. Estimated Expiration Date: Icon_subject May 14, 2028. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2800457

3668106

3756693

Electrophoretic display device
Patent #: 4272596
Issued on: 06/09/1981
Inventor: Harbour ,   et al.

Toner composition and processes thereof
Patent #: 5278020
Issued on: 01/11/1994
Inventor: Grushkin, et al.

Microsuspension processes for toner compositions
Patent #: 5290654
Issued on: 03/01/1994
Inventor: Sacripante, et al.

Toner processes
Patent #: 5308734
Issued on: 05/03/1994
Inventor: Sacripante, et al.

Polymerization processes and toner compositions therefrom
Patent #: 5322912
Issued on: 06/21/1994
Inventor: Georges, et al.

Process of making toner compositions
Patent #: 5344738
Issued on: 09/06/1994
Inventor: Kmiecik-Lawrynowicz, et al.

Toner processes
Patent #: 5346797
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Inventor: Kmiecik-Lawrynowicz, et al.

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Inventors

Assignee

Application

No. 12120616 filed on 05/14/2008

US Classes:

430/321Optical device , 320/32

Examiners

Primary: McPherson, John A.

Attorney, Agent or Firm

Foreign Patent References

  • 1 653 290 EP 05/01/2003
  • 1 752 820 EP 02/01/2007
  • WO 02/21201 WO 03/01/2002
  • WO 03/012542 WO 02/01/2003
  • WO 2005/116749 WO 12/01/2005
  • WO 2006/126120 WO 11/01/2006

International Class

G03F 7/20

Abstract

An electrophoretic display device includes a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium includes one or more set of colored particles in a dielectric fluid, and wherein the multiplicity of individual reservoirs are defined by a unitary grid whose walls segregate the reservoirs. The gird may be formed via photolithography or from a master stamp derived from a mold of the grid pattern.

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