Palitha Wickramanayake

Person

Corvallis, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Applications of an electrokinetic device for an imaging system
- Patent number 12,044,946
- Issue date Jul 23, 2024
- James E. Abbott
- G02 - OPTICS
Information Patent Grant
Applications of an electrokinetic device for an imaging system
- Patent number 11,693,289
- Issue date Jul 4, 2023
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Refractive index matched resin for electrophoretic displays and oth...
- Patent number 11,578,150
- Issue date Feb 14, 2023
- James E. Abbott
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Applications of an electrokinetic device for an imaging system
- Patent number 11,454,855
- Issue date Sep 27, 2022
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Refractive index matched resin for electrophoretic displays and oth...
- Patent number 11,174,328
- Issue date Nov 16, 2021
- Crown Electrokinetics Corp.
- James E. Abbott
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Printhead device including shipping fluid
- Patent number 10,583,660
- Issue date Mar 10, 2020
- Hewlett-Packard Development Company, L.P.
- Curtis Voss
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printhead device including shipping fluid
- Patent number 10,195,861
- Issue date Feb 5, 2019
- Hewlett-Packard Development Company, L.P.
- Curtis Voss
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink composition
- Patent number 9,193,884
- Issue date Nov 24, 2015
- Hewlett-Packard Development Company, L.P.
- Sundar Vasudevan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Inkjet ink with self-dispersed pigment
- Patent number 9,187,665
- Issue date Nov 17, 2015
- Hewlett-Packard Development Company, L.P.
- Sundar Vasudevan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Restoration of black to color bleed performance of amphoteric pigme...
- Patent number 8,287,633
- Issue date Oct 16, 2012
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Amphoteric pigment dispersion containing ink formulations, methods...
- Patent number 8,052,786
- Issue date Nov 8, 2011
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink-jet media porous coatings with chemically attached active ligands
- Patent number 7,919,176
- Issue date Apr 5, 2011
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Chemically-bonded porous coatings that enhance humid fastness and f...
- Patent number 7,740,920
- Issue date Jun 22, 2010
- Hewlett-Packard Development, L.P.
- Palitha Wickramanayake
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Permanent fixation of dyes to surface-modified inorganic particulat...
- Patent number 7,699,461
- Issue date Apr 20, 2010
- Hewlett-Packard Development Company, L.P.
- Vladek P Kasperchik
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Chemically-modified coatings for enhanced performance of ink-jet im...
- Patent number 7,677,720
- Issue date Mar 16, 2010
- Hewlett-Packard Development Company, L.P.
- Kent D. Vincent
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Amphoteric pigment dispersion containing ink formulations, methods...
- Patent number 7,666,256
- Issue date Feb 23, 2010
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of preparing active ligand-modified inorganic porous coating...
- Patent number 7,638,166
- Issue date Dec 29, 2009
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Chemically-bonded porous coatings that enhance humid fastness and f...
- Patent number 7,449,217
- Issue date Nov 11, 2008
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Permanent fixation of dyes to surface-modified inorganic particulat...
- Patent number 7,226,647
- Issue date Jun 5, 2007
- Hewlett-Packard Development Company, L.P.
- Vladek P Kasperchik
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Chemically-modified coatings for enhanced performance of ink-jet im...
- Patent number 6,951,672
- Issue date Oct 4, 2005
- Hewlett-Packard Development Company, L.P.
- Kent D. Vincent
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Active ligand-modified inorganic porous coatings for ink-jet media
- Patent number 6,905,729
- Issue date Jun 14, 2005
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Pen-compatible black and color inkjet inks having improved bleed co...
- Patent number 6,805,736
- Issue date Oct 19, 2004
- Hewlett-Packard Development Company, L.P.
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Inks containing glycol ethers and specific polymers for dry time an...
- Patent number 6,300,391
- Issue date Oct 9, 2001
- Hewlett-Packard Company
- Dennis P. Parazak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Black to color bleed control in ink-jet printing inks
- Patent number 6,036,759
- Issue date Mar 14, 2000
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Reliability enhancement of microemulsion-based ink-jet inks
- Patent number 6,019,827
- Issue date Feb 1, 2000
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Bleed alleviated aqueous pigment dispersion-based ink-jet ink compo...
- Patent number 5,713,989
- Issue date Feb 3, 1998
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fast drying, bleed-free ink-jet ink compositions
- Patent number 5,565,022
- Issue date Oct 15, 1996
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Bleed-alleviated, waterfast, pigment-based ink-jet ink compositions
- Patent number 5,531,816
- Issue date Jul 2, 1996
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Black-to-color bleed control in thermal ink-jet printing
- Patent number 5,342,440
- Issue date Aug 30, 1994
- Hewlett-Packard Corporation
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Solubilization of water-insoluble dyes via microemulsions for bleed...
- Patent number 5,226,957
- Issue date Jul 13, 1993
- Hewlett-Packard Company
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM
- Publication number 20250053059
- Publication date Feb 13, 2025
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM
- Publication number 20240118581
- Publication date Apr 11, 2024
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...
- Publication number 20230322974
- Publication date Oct 12, 2023
- James E. Abbott
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM
- Publication number 20230110256
- Publication date Apr 13, 2023
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...
- Publication number 20220177617
- Publication date Jun 9, 2022
- James E. Abbott
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM
- Publication number 20200225552
- Publication date Jul 16, 2020
- Crown Electrokinetics Corp.
- James E. Abbott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...
- Publication number 20190256625
- Publication date Aug 22, 2019
- Crown Electrokinetics Corp.
- James E. Abbott
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PRINTHEAD DEVICE INCLUDING SHIPPING FLUID
- Publication number 20190160823
- Publication date May 30, 2019
- Hewlett-Packard Development Company, L.P.
- Curtis Voss
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK COMPOSITIONS
- Publication number 20180298213
- Publication date Oct 18, 2018
- Hewlett-Packard Development Company, L.P.
- Jayprakash C. Bhatt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK COMPOSITIONS
- Publication number 20180194958
- Publication date Jul 12, 2018
- Hewlett-Packard Development Company, L.P.
- Jayprakash C. Bhatt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PRINTHEAD DEVICE INCLUDING SHIPPING FLUID
- Publication number 20170320328
- Publication date Nov 9, 2017
- Hewlett-Packard Development Company, L.P.
- Curtis Voss
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK COMPOSITION
- Publication number 20140285593
- Publication date Sep 25, 2014
- Sundar Vasudevan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INKJET INK WITH SELF-DISPERSED PIGMENT
- Publication number 20120329921
- Publication date Dec 27, 2012
- Sundar Vasudevan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AMPHOTERIC PIGMENT DISPERSION CONTAINING INK FORMULATIONS, METHODS...
- Publication number 20100112221
- Publication date May 6, 2010
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Additives for use in print media to reduce bronzing
- Publication number 20090087594
- Publication date Apr 2, 2009
- Palitha WICKRAMANAYAKE
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK COMPOSITION AND METHOD FOR FORMING THE SAME
- Publication number 20090031922
- Publication date Feb 5, 2009
- Sukanya Rengaswamy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CHEMICALLY-BONDED POROUS COATINGS THAT ENHANCE HUMID FASTNESS AND F...
- Publication number 20090035490
- Publication date Feb 5, 2009
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Permanent Fixation of Dyes to Surface-Modified Inorganic Particulat...
- Publication number 20070188579
- Publication date Aug 16, 2007
- Vladek P. Kasperchik
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Amphoteric pigment dispersion containing ink formulations, methods...
- Publication number 20060092250
- Publication date May 4, 2006
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Restoration of black to color bleed performance of amphoteric pigme...
- Publication number 20060092252
- Publication date May 4, 2006
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Chemically-modified coatings for enhanced performance of ink-jet im...
- Publication number 20050270350
- Publication date Dec 8, 2005
- Kent D. Vincent
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Emulsion with discontinouous phase including particle sol
- Publication number 20050227096
- Publication date Oct 13, 2005
- Phil Harding
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Permanent fixation of dyes to surface-modified inorganic particulat...
- Publication number 20050084630
- Publication date Apr 21, 2005
- Vladek P. Kasperchik
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Chemically-bonded porous coatings that enhance humid fastness and f...
- Publication number 20040219311
- Publication date Nov 4, 2004
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Weak base modification of porous ink-jet media coating for enhanced...
- Publication number 20040209017
- Publication date Oct 21, 2004
- Peter C. Zahrobsky
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Additives for use in print media to reduce bronzing
- Publication number 20040209015
- Publication date Oct 21, 2004
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Pen-compatible black and color inkjet inks having improved bleed co...
- Publication number 20040129171
- Publication date Jul 8, 2004
- Palitha Wickramanayake
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Active ligand-modified inorganic porous coatings for ink-jet media
- Publication number 20040081772
- Publication date Apr 29, 2004
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Chemically-modified coatings for enhanced performance of ink-jet im...
- Publication number 20040022946
- Publication date Feb 5, 2004
- Kent D. Vincent
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Ink-jet media porous coatings with chemically attached active ligands
- Publication number 20030198801
- Publication date Oct 23, 2003
- Palitha Wickramanayake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Palitha Wickramanayake

Person

Patents Grantslast 30 patents

Applications of an electrokinetic device for an imaging system

Applications of an electrokinetic device for an imaging system

Refractive index matched resin for electrophoretic displays and oth...

Applications of an electrokinetic device for an imaging system

Refractive index matched resin for electrophoretic displays and oth...

Printhead device including shipping fluid

Printhead device including shipping fluid

Ink composition

Inkjet ink with self-dispersed pigment

Restoration of black to color bleed performance of amphoteric pigme...

Amphoteric pigment dispersion containing ink formulations, methods...

Ink-jet media porous coatings with chemically attached active ligands

Chemically-bonded porous coatings that enhance humid fastness and f...

Permanent fixation of dyes to surface-modified inorganic particulat...

Chemically-modified coatings for enhanced performance of ink-jet im...

Amphoteric pigment dispersion containing ink formulations, methods...

Method of preparing active ligand-modified inorganic porous coating...

Chemically-bonded porous coatings that enhance humid fastness and f...

Permanent fixation of dyes to surface-modified inorganic particulat...

Chemically-modified coatings for enhanced performance of ink-jet im...

Active ligand-modified inorganic porous coatings for ink-jet media

Pen-compatible black and color inkjet inks having improved bleed co...

Inks containing glycol ethers and specific polymers for dry time an...

Black to color bleed control in ink-jet printing inks

Reliability enhancement of microemulsion-based ink-jet inks

Bleed alleviated aqueous pigment dispersion-based ink-jet ink compo...

Fast drying, bleed-free ink-jet ink compositions

Bleed-alleviated, waterfast, pigment-based ink-jet ink compositions

Black-to-color bleed control in thermal ink-jet printing

Solubilization of water-insoluble dyes via microemulsions for bleed...

Patents Applicationslast 30 patents

APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM

APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM

REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...

APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM

REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...

APPLICATIONS OF AN ELECTROKINETIC DEVICE FOR AN IMAGING SYSTEM

REFRACTIVE INDEX MATCHED RESIN FOR ELECTROPHORETIC DISPLAYS AND OTH...

PRINTHEAD DEVICE INCLUDING SHIPPING FLUID

INK COMPOSITIONS

INK COMPOSITIONS

PRINTHEAD DEVICE INCLUDING SHIPPING FLUID

INK COMPOSITION

INKJET INK WITH SELF-DISPERSED PIGMENT

AMPHOTERIC PIGMENT DISPERSION CONTAINING INK FORMULATIONS, METHODS...

Additives for use in print media to reduce bronzing

INK COMPOSITION AND METHOD FOR FORMING THE SAME

CHEMICALLY-BONDED POROUS COATINGS THAT ENHANCE HUMID FASTNESS AND F...

Permanent Fixation of Dyes to Surface-Modified Inorganic Particulat...

Amphoteric pigment dispersion containing ink formulations, methods...

Restoration of black to color bleed performance of amphoteric pigme...

Chemically-modified coatings for enhanced performance of ink-jet im...

Emulsion with discontinouous phase including particle sol

Permanent fixation of dyes to surface-modified inorganic particulat...

Chemically-bonded porous coatings that enhance humid fastness and f...

Weak base modification of porous ink-jet media coating for enhanced...

Additives for use in print media to reduce bronzing

Pen-compatible black and color inkjet inks having improved bleed co...

Active ligand-modified inorganic porous coatings for ink-jet media

Chemically-modified coatings for enhanced performance of ink-jet im...

Ink-jet media porous coatings with chemically attached active ligands