Patents by Inventor J. Wallace Parce
J. Wallace Parce has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10138517Abstract: An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.Type: GrantFiled: June 6, 2017Date of Patent: November 27, 2018Assignee: CALIPER LIFE SCIENCES, INC.Inventors: Tammy Burd Mehta, Anne R. Kopf-Sill, J. Wallace Parce, Andrea W. Chow, Luc J. Bousse, Michael R. Knapp, Theo T. Nikiforov, Steve Gallagher
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Publication number: 20170356040Abstract: An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.Type: ApplicationFiled: June 6, 2017Publication date: December 14, 2017Inventors: Tammy Burd Mehta, Anne R. Kopf-Sill, J. Wallace Parce, Andrea W. Chow, Luc J. Bousse, Michael R. Knapp, Theo T. Nikiforov, Steve Gallagher
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Patent number: 9683994Abstract: The present invention provides novel methods for performing pulsed field mobility shift assays in microfluidic devices. In particular, the methods of the invention utilize differences between electrophoretic mobilities (e.g., as between reactants and products, especially in non-fluorogenic reactions) in order to separate the species and thus analyze the reaction.Type: GrantFiled: July 9, 2012Date of Patent: June 20, 2017Assignee: Caliper Life Sciences, Inc.Inventors: Andrea W. Chow, John C. Owicki, J. Wallace Parce
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Patent number: 9670541Abstract: An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.Type: GrantFiled: August 11, 2015Date of Patent: June 6, 2017Assignee: CALIPER LIFE SCIENCES, INC.Inventors: Tammy Burd Mehta, Anne R. Kopf-Sill, J. Wallace Parce, Andrea W. Chow, Luc J. Bousse, Michael R. Knapp, Theo T. Nikiforov, Steve Gallagher
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Patent number: 9481583Abstract: The disclosure provides methods and materials for preparing a titania nanoparticle product. For example, titania nanoparticle products having desirable optical properties such as a desirable refractive index are prepared according to the methods provided herein.Type: GrantFiled: April 5, 2014Date of Patent: November 1, 2016Assignee: Eastman Chemical CompanyInventors: Kevin Krogman, Siglinde Schmid, Melissa Fardy, J. Wallace Parce
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Patent number: 9393589Abstract: The invention provides materials and methods for forming coatings on substrates. The coatings are durable and resistant to damage from environmental, chemical, thermal, and/or radiative sources. In some embodiments, the coatings comprise bilayers of electrostatically charged materials. The bilayers are created by alternately applying solutions comprising water-soluble, electrostatically charged materials. Durability is imparted to the coatings by the formation of crosslinks that are formed within and between layers after deposition of the coatings.Type: GrantFiled: August 15, 2013Date of Patent: July 19, 2016Assignee: Eastman Chemical CompanyInventors: David Olmeijer, J. Wallace Parce, Benjamin Wang, Kevin Krogman
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Patent number: 9395475Abstract: Traditional solar control applications rely on thin metal films to reflect EM radiation with wavelengths longer than that of the visible spectrum. Unfortunately such films also block radiation in cellular, GPS, and radio frequency bands. In one aspect, the disclosure provides a selectively-blocking filter that uses one or more optical filters tuned to a specific range(s) of wavelengths (e.g. for blocking IR radiation), while readily transmitting other wavelengths (e.g. both visible light and cellular/GPS signals). The filters can be manufactured on both flexible and rigid substrates.Type: GrantFiled: April 5, 2014Date of Patent: July 19, 2016Assignee: Eastman Chemical CompanyInventors: Kevin Krogman, J. Wallace Parce, Siglinde Schmid, Melissa Fardy, Tom Hood, Steven D. White, Benjamin Wang
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Patent number: 9387505Abstract: The disclosure provides materials, apparatuses, and methods for making multilayer coatings with a high degree of efficiency and control. In some aspects, for example, coatings are described having multiple layers of nanoparticles and a polyelectrolyte, wherein the nanoparticles form tightly packed monolayers. The interface between monolayers may include polyelectrolyte material. One or more aspects of such monolayers and interfaces are controllable.Type: GrantFiled: September 12, 2013Date of Patent: July 12, 2016Assignee: Eastman Chemical CompanyInventors: Kevin Krogman, J. Wallace Parce, Melissa Fardy, Siglinde Schmid, Thomas Workman, Thomas Fong, William E. Jarvis, Benjamin Wang
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Patent number: 9278354Abstract: The invention provides methods of controlling environmental conditions within a fluidic system, where such environmental conditions can affect the operation of the system in its desired function, and fluidic channels, devices, and systems that are used in practicing these methods. Such methods are generally directed to environmental control fluids, the movement of such fluids through these systems, and the interaction of these fluids with other components of the system, e.g., other fluids or solid components of the system.Type: GrantFiled: March 17, 2015Date of Patent: March 8, 2016Assignee: CALIPER LIFE SCIENCES, INC.Inventors: J. Wallace Parce, Yung-Mae M. Yao, Donald J Morrissey
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Publication number: 20160040226Abstract: An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.Type: ApplicationFiled: August 11, 2015Publication date: February 11, 2016Inventors: Tammy Burd Mehta, Anne R. Kopf-Sill, J. Wallace Parce, Andrea W. Chow, Luc J. Bousse, Michael R. Knapp, Theo T. Nikiforov, Steve Gallagher
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Patent number: 9149836Abstract: Ligand compositions for use in preparing discrete coated nanostructures are provided, as well as the coated nanostructures themselves and devices incorporating same. Methods for post-deposition shell formation on a nanostructure, for reversibly modifying nanostructures, and for manipulating the electronic properties of nanostructures are also provided. The ligands and coated nanostructures of the present invention are particularly useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures. Ligands of the present invention are also useful for manipulating the electronic properties of nanostructure compositions (e.g., by modulating energy levels, creating internal bias fields, reducing charge transfer or leakage, etc.).Type: GrantFiled: September 4, 2013Date of Patent: October 6, 2015Assignee: SanDisk CorporationInventors: Jeffery A. Whiteford, Mihai A. Buretea, Jian Chen, William P. Freeman, Andreas Meisel, Linh Nguyen, J. Wallace Parce, Erik C. Scher
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Patent number: 9139770Abstract: Siloxane polymer ligands for binding to quantum dots are provided. The polymers include a multiplicity of amine or carboxy binding ligands in combination with long-alkyl chains providing improved stability for the ligated quantum dots. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nano structures.Type: GrantFiled: March 14, 2013Date of Patent: September 22, 2015Assignee: Nanosys, Inc.Inventors: William P. Freeman, Paul T. Furuta, Wendy Guo, Robert Dubrow, J. Wallace Parce
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Patent number: 9133394Abstract: Quantum-dot binding ligands with silsesquioxane moieties are provided. The quantum-dot binding ligands include a multiplicity of amine or carboxy binding ligands in combination with silsesquioxane moieties providing improved stability for the ligated quantum dots. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures.Type: GrantFiled: March 13, 2014Date of Patent: September 15, 2015Assignee: Nanosys, Inc.Inventors: William P. Freeman, Paul T. Furuta, Robert Dubrow, J. Wallace Parce
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Patent number: 9101928Abstract: An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.Type: GrantFiled: January 27, 2011Date of Patent: August 11, 2015Assignee: Caliper Life Sciences, Inc.Inventors: Tammy Burd Mehta, Anne R. Kopf-Sill, J. Wallace Parce, Andrea W. Chow, Luc J. Bousse, Michael R. Knapp, Theo T. Nikiforov, Steve Gallagher
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Publication number: 20150190808Abstract: The invention provides methods of controlling environmental conditions within a fluidic system, where such environmental conditions can affect the operation of the system in its desired function, and fluidic channels, devices, and systems that are used in practicing these methods. Such methods are generally directed to environmental control fluids, the movement of such fluids through these systems, and the interaction of these fluids with other components of the system, e.g., other fluids or solid components of the system.Type: ApplicationFiled: March 17, 2015Publication date: July 9, 2015Inventors: J. Wallace Parce, Yung-Mae M. Yao, Donald J. Morrissey
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Publication number: 20150166342Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes are optionally formed from the ligands. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided.Type: ApplicationFiled: November 19, 2014Publication date: June 18, 2015Applicant: Nanosys, Inc.Inventors: Mingjun LIU, Robert S. DUBROW, William P. FREEMAN, Adrienne D. KUCMA, J. Wallace PARCE
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Patent number: 8981452Abstract: Methods for forming or patterning nanostructure arrays are provided. The methods involve formation of arrays on coatings comprising nanostructure association groups, formation of arrays in spin-on-dielectrics, solvent annealing after nanostructure deposition, patterning using resist, and/or use of devices that facilitate array formation. Related devices for forming nanostructure arrays are also provided, as are devices including nanostructure arrays (e.g., memory devices). Methods for protecting nanostructures from fusion during high temperature processing also are provided.Type: GrantFiled: September 20, 2013Date of Patent: March 17, 2015Assignee: SanDisk CorporationInventors: Jian Chen, Xiangfeng Duan, Chao Liu, Madhuri Nallabolu, J. Wallace Parce, Srikanth Ranganathan
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Patent number: 8980644Abstract: The invention provides methods of controlling environmental conditions within a fluidic system, where such environmental conditions can affect the operation of the system in its desired function, and fluidic channels, devices, and systems that are used in practicing these methods. Such methods are generally directed to environmental control fluids, the movement of such fluids through these systems, and the interaction of these fluids with other components of the system, e.g., other fluids or solid components of the system.Type: GrantFiled: April 23, 2012Date of Patent: March 17, 2015Assignee: Caliper Life Sciences, Inc.Inventors: J. Wallace Parce, Yung-mae M. Yao, Donald J. Morrissey, Jr.
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Patent number: 8916064Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes are optionally formed from the ligands. The matrixes of the present invention can be used as refractive index matching components, filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.Type: GrantFiled: November 18, 2013Date of Patent: December 23, 2014Assignee: Nanosys, Inc.Inventors: Mingjun Liu, Robert S. Dubrow, William P. Freeman, Adrienne D. Kucma, J. Wallace Parce
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Patent number: 8871623Abstract: Methods are provided for forming a nanostructure array. An example method includes providing a first layer, providing nanostructures dispersed in a solution comprising a liquid form of a spin-on-dielectric, wherein the nanostructures comprise a silsesquioxane ligand coating, disposing the solution on the first layer, whereby the nanostructures form a monolayer array on the first layer, and curing the liquid form of the spin-on-dielectric to provide a solid form of the spin-on-dielectric. Numerous other aspects are provided.Type: GrantFiled: April 11, 2014Date of Patent: October 28, 2014Assignee: SanDisk CorporationInventors: Jian Chen, Karen Chu Cruden, Xiangfeng Duan, Chao Liu, J. Wallace Parce