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Kathryn A. Pearlstine
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Chadds Ford, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Water insoluble non-ionic graft copolymers
Patent number
7,008,992
Issue date
Mar 7, 2006
E. I. Du Pont de Nemours and Company
Loretta Ann Grezzo Page
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Priming fluid for ink jet printheads
Patent number
6,811,243
Issue date
Nov 2, 2004
E. I. Du Pont de Nemours and Company
Kathryn A. Pearlstine
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Aqueous pigmented ink jet inks for printing on vinyls
Patent number
6,087,416
Issue date
Jul 11, 2000
E. I. Du Pont de Nemours and Company
Kathryn Amy Pearlstine
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Polymer/dye reaction products for improved chroma in pigment-based...
Patent number
5,969,033
Issue date
Oct 19, 1999
E. I. Du Pont de Nemours and Company
Kathryn Amy Pearlstine
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Ink jet inks containing emulsion-polymer additives to improve water...
Patent number
5,912,280
Issue date
Jun 15, 1999
E. I. Du Pont de Nemours and Company
Waifong Liew Anton
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ink set and process for alleviating bleed in printed elements
Patent number
5,750,594
Issue date
May 12, 1998
E. I. Du Pont de Nemours and Company
Loretta Ann Grezzo Page
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Ink set and process for alleviating bleed in printed elements
Patent number
5,518,534
Issue date
May 21, 1996
E. I. Du Pont de Nemours and Company
Kathryn A. Pearlstine
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
System for replenishing liquid electrostatic developer
Patent number
5,471,287
Issue date
Nov 28, 1995
E. I. Du Pont de Nemours and Company
David E. Blair
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Quaternary ammonium compound as charge adjuvants for positive elect...
Patent number
5,382,492
Issue date
Jan 17, 1995
Xerox Corporation
Lyla M. El-Sayed
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Block copolymer amine salts as charge directors for negative electr...
Patent number
5,290,653
Issue date
Mar 1, 1994
E. I. Du Pont de Nemours and Company
Kathryn A. Pearlstine
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Siloxane surfactants as liquid developer additives
Patent number
5,206,107
Issue date
Apr 27, 1993
Xerox Corporation
Kathryn A. Pearlstine
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for preparing positive electrostatic liquid developers with...
Patent number
5,066,821
Issue date
Nov 19, 1991
DXImaging
William A. Houle
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Mineral acids as charge adjuvants for positive liquid electrostatic...
Patent number
5,034,299
Issue date
Jul 23, 1991
DXImaging
William A. Houle
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Substituted carboxylic acids as adjuvants for positive electrostati...
Patent number
5,002,848
Issue date
Mar 26, 1991
E. I. Du Pont de Nemours and Company
Lyla M. El-Sayed
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Voltammetry in low-permitivity suspensions
Patent number
4,928,065
Issue date
May 22, 1990
E. I. Du Pont de Nemours and Company
Gregg A. Lane
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Priming fluid for ink jet printheads
Publication number
20030117472
Publication date
Jun 26, 2003
Kathryn A. Pearlstine
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS