Inventor

Sivapackia Ganapathiappan

Inventor

Los Altos, CA, US

Overview

1992–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 130 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Dprimary

C09DCoating compositions, e.g. paints, varnishes or lacquers23%

G03GElectrography8%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering6%

B29CShaping or joining of plastics6%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments5%

Y10TTechnical subjects covered by former us classification5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts3%

B41MPrinting, duplicating, marking, or copying processes3%

PatentTitleYear

11,110,653Three-dimensional (3D) printing2021 11,104,8163-dimensional printing2021 11,094,530In-situ curing of color conversion layer2021 11,072,050Polishing pad with window and manufacturing methods thereof2021 11,002,530Tiltable platform for additive manufacturing of a polishing pad2021 10,974,322Photonic fusing2021 10,968,356Coalescent ink2021 10,953,515Apparatus and method of forming a polishing pads by use of an additive manufacturing process2021 10,919,217Three-dimensional (3D) printing build material composition2021 10,850,450Modifying a base layer of an object2020 10,781,3233-dimensional printing2020 10,766,246Additive manufacturing2020 10,731,0443-dimensional printing2020 10,692,923Systems and methods for transfer of micro-devices2020 10,596,763Additive manufacturing with array of energy sources2020 10,583,612Three-dimensional (3D) printing method2020 10,544,311Polymeric powder composition for three-dimensional (3D) printing2020 10,538,032Thermally decomposing material for three-dimensional printing2020 10,456,886Porous chemical mechanical polishing pads2019 10,434,708Three-dimensional (3D) printing method2019 10,399,201Advanced polishing pads having compositional gradients by use of an additive manufacturing process2019 10,391,605Method and apparatus for forming porous advanced polishing pads using an additive manufacturing process2019 10,280,299Compositions for three-dimensional (3D) printing2019 10,125,264Compositions for three-dimensional (3D) printing2018 10,072,166Inks with latex polymers having improved printing performance2018 10,032,827Systems and methods for transfer of micro-devices2018 9,921,511'Polymer-encapsulated metallic ink particles and metallic electrophotographic inks'2018 9,914,836'Coated silver colored colorant'2018 9,823,591'Coated photoconductive substrate'2017 9,823,592'Coated photoconductive substrate'2017 9,738,102'Ink-jet ink printing system and method'2017 9,720,341'High opacity white inks containing MICA-based minerals with titania'2017 9,683,113'Pigment particles containing a vinyl group and encapsulated by a cross-linked polymer'2017 9,547,248'Inks for liquid electrophotography'2017 9,423,709'Polymer coated toner pigments for electrophotographic printing'2016 9,395,639'Liquid electrophotographic ink'2016 9,329,516'Deinkable liquid toner'2016 9,156,956'Surface-crosslinked latex particulates'2015 9,133,344'Ink-jet inks having polymers and near-infrared absorbing dyes'2015 9,017,915'Electrophotographic ink'2015 9,017,909'Coated photoconductive substrate'2015 8,944,579'Ink-jet inks including inter-crosslinkable latex particles'2015 8,939,569'Inkjet ink with non-swellable latex particles'2015 8,927,096'Coated substrates for liquid electrophotographic printing'2015 8,926,079'Ink set'2015 8,926,081'Ink-jet overcoats including latex polymers and inorganic nano particles'2015 8,916,334'Micro-composite material for three-dimensional printing'2014 8,894,194'Ink-jet inks including self cross-linkable latex particles'2014 8,895,219'Liquid electrophotographic inks'2014 8,857,964'Inkjet ink composition including latex polymers'2014 8,808,439'Phthalocyanines and naphthalocyanines with near-IR absorptions for inkjet inks'2014 8,795,422'Naphthalocyanine dye and ink containing the same'2014 8,784,548'Phthalocyanines and naphthalocyanines with near-IR absorptions for inkjet inks'2014 8,778,073'Phthalocyanine dye with extended conjugation, ink and detection system using same'2014 8,772,372'Method of making a pigment dispersion'2014 8,765,348'Liquid toner including latex particles'2014 8,709,601'Block copolymer nanoparticle compositions'2014 8,685,154'Inks with water soluble near IR dyes'2014 8,674,001'Encapsulated pigments containing cross-linking agent'2014 8,669,037'Inks for liquid electrophotography'2014 8,563,210'Liquid electrophotographic ink concentrates and methods for preparing the same'2013 8,487,036'Self-dispersing latex particulates'2013 8,426,100'Liquid electrophotographic ink concentrates and methods for preparing the same'2013 8,334,329'Binders for pigmented ink formulations'2012 8,318,833'Polymer-encapsulated pigment with amphiphilic passivation layer'2012 8,314,163'Steric stabilized latex particulates'2012 8,283,413'Acid-functionalized hydrophobic monomer emulsions, latexes, and associated latexes'2012 8,273,933'Functionalized latex polymer and method of forming the same'2012 8,268,909'Dispersed pigments'2012 8,258,205'Binders for pigmented ink formulations'2012 8,258,204'Latex polymer with specific composition for inkjet printing on vinyl media'2012 8,246,754'Process for removing ink from printed substrate'2012 8,226,757'Phthalocyanine dye and ink containing the same'2012 8,206,496'Mixed phthalocyanine and naphthalocyanine dyes for near-infrared applications'2012 8,206,497'Polyphenylated phthalocyanines with near-infrared absorption'2012 8,202,358'Phthalocyanine, naphthalocyanine, and bridged phthalocyanine/naphthalocyanine dyes and inks containing the same'2012 8,198,346'Encapsulated pigment'2012 8,148,461'Latex particles having incorporated image stabilizers'2012 7,927,410'Near infrared dye composition'2011 7,910,649'Maleimide-containing latex dispersions'2011 7,888,428'Surfactant initiator and latexes prepared using same'2011 7,846,500'Latex-based overcoat for ink-jet printing applications'2010 7,838,574'Dispersed pigments'2010 7,812,067'Binders for pigmented ink formulations'2010 7,750,059'Polymer solution for nanoimprint lithography to reduce imprint temperature and pressure'2010 7,737,196'Compositions and methods for producing urethane coated pigment particles'2010 7,705,070'Ink-jet compatible latexes'2010 7,677,720'Chemically-modified coatings for enhanced performance of ink-jet images'2010 7,608,646'Polymer-encapsulated pigment with bridging layer'2009 7,569,650'Compositions and methods for producing latexes containing urethanes'2009 7,553,886'Cross-linked latex particulates'2009 7,544,418'Polymer-encapsulated pigments and associated methods'2009 7,544,736'Methods of preparing latex particulates with reactive functional groups'2009 7,465,765'Latex particulates with epoxide functional groups'2008 7,411,011'Latex-based overcoat for ink-jet printing applications'2008 7,402,617'Low bulk density, low surface dielectric constant latex polymers for ink-jet ink applications'2008 7,371,273'Latexes and ink-jet inks prepared using blocked acid monomers'2008 7,358,301'Latex particles having incorporated image stabilizers'2008 7,354,972'Amphipathic polymer particles and methods of manufacturing the same'2008 7,252,862'Increasing adhesion in an imprinting procedure'2007 7,220,528'Amphipathic polymer particles and methods of manufacturing the same'2007 7,157,504'Ink-jet printing methods and systems providing improved image durability'2007 7,119,133'Latex-encapsulated particulates for ink-jet applications'2006 7,030,175'Ink jet latex having reactive surfactant stabilization'2006 6,995,206'Methods of preparing latex particulates with reactive functional groups'2006 6,951,672'Chemically-modified coatings for enhanced performance of ink-jet images'2005 6,861,484'Amphipathic polymer particles and methods of manufacturing the same'2005 6,858,301'Specific core-shell polymer additive for ink-jet inks to improve durability'2005 6,841,591'Encapsulated dye particle'2005 6,716,949'Amphipathic polymer particles and methods of manufacturing the same'2004 6,508,872'Lightfast additive molecule for inkjet ink'2003 6,465,142'Low-temperature cure polyvinylbutyral as a photoconducter binder'2002 6,417,249'Ink-jet printing ink compositions having superior smear-fastness'2002 6,248,805'Ink-jet printing ink compositions having magnetic properties and specific core/shell binder'2001 6,248,161'Preparation of permanent color inks from water-soluble colorants using specific phosphonium salts'2001 6,117,222'Water-based, water-fast ink compositions containing a binder matrix of a monomeric polyacid and a monomeric polybase'2000 6,090,193'Water-based ink compositions containing a binder material of a polymeric resin and a neutralizing composition'2000 6,057,384'Latex polymer blends for improving the permanence of ink-jet inks'2000 6,027,844'Polymeric binders having saturated ring for improved performance of single layer positive organic photoconductor'2000 5,990,202'Dual encapsulation technique for preparing ink-jets inks'1999 5,972,552'Photoconductor comprising a complex between metal oxide phthalocyanine compounds and hydroxy or amine compounds'1999 5,973,025'Aqueous ink compositions containing a binder of a neutralized acidic resin'1999 5,858,592'Terpolymers useful as charge injection barrier materials for photoreceptor'1999 5,834,564'Photoconductor coating having perfluoro copolymer and composition for making same'1998 5,631,114'Derivatives of diiminoquinones useful as electron transport agents in electrophotographic elements'1997 5,558,965'Diiminoquinilidines as electron transport agents in electrophotographic elements'1996 5,518,853'Diffusion coating process of making inverse composite dual-layer organic photoconductor'1996 5,516,610'Reusable inverse composite dual-layer organic photoconductor using specific polymers'1996 5,367,051'Amine-containing polymerizable monomers and polymers functionalized with fullerenes to provide polymers with high temperature stability'1994 5,102,751'Plasticizers useful for enhancing ionic conductivity of solid polymer electrolytes'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Based in Mountain View, CA, US· patent location history

1996–2003Patents assigned to HEWLETT PACKARD CO (15)· patent assignee history

1996–2002Based in Fremont, CA, US· patent location history

2002–2021Based in Los Altos, CA, US· patent location history

2004–2021Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (93)· patent assignee history

2009–2021Based in Palo Alto, CA, US· patent location history

2012–2017Patents assigned to GANAPATHIAPPAN SIVAPACKIA (41)· patent assignee history

2013–2017Patents assigned to NG HOU T (16)· patent assignee history

2018–2021Patents assigned to APPLIED MATERIALS INC (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HEWLETT PACKARD DEVELOPMENT CO	93	2004–2021
GANAPATHIAPPAN SIVAPACKIAself	41	2012–2017
NG HOU T	16	2013–2017
HEWLETT PACKARD CO	15	1996–2003
APPLIED MATERIALS INC	10	2018–2021

Locations

Location	Patents	Span
Los Altos, California, US	94	2002–2021
Palo Alto, California, US	18	2009–2021
Mountain View, California, US	11	1992–2001
Fremont, California, US	7	1996–2002