Patents by Inventor James F. Brown

James F. Brown 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).

  • Patent number: 9035082
    Abstract: Substrates, surfaces, assemblies, kits, compositions, and methods are provided for forming touch screens and other appliance surfaces exhibiting good hydrophobicity, oleophobicity, and abrasion resistance. Methods are provided for increasing a population density of hydroxyl groups on a touch surface of a touch screen substrate without affecting the compressive strength of the back surface. The treated touch surface of the substrate can then be coated with a coating that includes an organo-metallic and/or silane, for example, a fluorosilane such as a perfluoropolyether alkoxysilane. A substrate can retain its compressive resistance to breakage by impact applied to the touch surface while minimizing any decrease in compressive strength against impact against the touch surface. Examples of such substrates include touch screens for mobile and desktop electronic devices, components of 3D display devices, and components for electrowetting display devices.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 19, 2015
    Assignee: Cytonix, LLC
    Inventor: James F. Brown
  • Publication number: 20150017709
    Abstract: A method comprises loading a sample portion into a sample chamber which comprises means for minimizing diffusion of the sample portion, subjecting the sample portion to an amplification step, and determining whether the sample portion contains at least one molecule of a target nucleic acid. If the sample portion contains a single molecule of the target nucleic acid, the sample portion would attain a detectable concentration of the target nucleic acid after a single round of amplification. Also, a microfluidic device comprising a sample portion and a sample chamber comprising means for minimizing diffusion of the sample portion. Also, a microfluidic device comprising a sample chamber and an amplification targeting reagent positioned in the first sample chamber.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 15, 2015
    Applicants: APPLIED BIOSYSTEMS, LLC, HEALTH AND HUMAN SERVICES, UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECR
    Inventors: James F. BROWN, Jonathan E. SILVER
  • Publication number: 20150010911
    Abstract: A device for amplifying a target nucleic acid in a sample containing one or more target nucleic acids may include a planar fluidic assembly comprising a flow channel and an inlet, wherein the inlet is in flow communication with the flow channel and is configured to introduce sample containing one or more target nucleic acids into the flow channel, wherein the flow channel has a substantially uniform cross-section from a first end to a second end. A plurality of nucleic acid primers can be disposed at discrete regions along and within the flow channel, each of the plurality of nucleic acid primers being complementary to a portion of the one or more target nucleic acids in the sample to enable a primer-based amplification reaction of the one or more target nucleic acids. The discrete regions may be configured to retain sample and amplified product of the amplification reaction during the primer-based amplification reaction.
    Type: Application
    Filed: August 11, 2014
    Publication date: January 8, 2015
    Applicants: APPLIED BIOSYSTEMS, LLC, Health And Human Services, United States Of America, as Represented by the Secr
    Inventors: James F. BROWN, Jonathan E. SILVER
  • Patent number: 8859204
    Abstract: A method comprises loading a sample portion into a sample chamber which comprises means for minimizing diffusion of the sample portion, subjecting the sample portion to an amplification step, and determining whether the sample portion contains at least one molecule of a target nucleic acid. If the sample portion contains a single molecule of the target nucleic acid, the sample portion would attain a detectable concentration of the target nucleic acid after a single round of amplification. Also, a microfluidic device comprising a sample portion and a sample chamber comprising means for minimizing diffusion of the sample portion. Also, a microfluidic device comprising a sample chamber and an amplification targeting reagent positioned in the first sample chamber.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 14, 2014
    Assignees: Applied Biosystems, LLC, The United States of America, As Represented by the Secretary, Department of Health and Human Services
    Inventors: James F. Brown, Jonathan E. Silver
  • Patent number: 8822183
    Abstract: A device for amplifying target nucleic acid in a sample can include a planar fluidic assembly including a transparent substrate, a porous material layer on a surface of the transparent substrate, and a cover over the porous material layer and sealingly affixed to the substrate. The cover may be spaced from the porous material layer and a flow channel defined between the porous material layer and the cover. The flow channel may have a uniform cross-section from a first end to a second end.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: September 2, 2014
    Assignees: Applied Biosystems, LLC, The United States of America, as represented by the Secretary, Department of Health and Sciences
    Inventors: James F. Brown, Jonathan E. Silver
  • Patent number: 8795779
    Abstract: A system and method is shown for coating an article, including a chamber that can be at least partially open to surrounding air to allow free flow of air through the chamber and recovery of vapor produced during a coating operation within the chamber. The chamber can include a support surface that is adapted to support the article during a coating process, and a coating device within the chamber can be adapted to selectively apply a coating of a fluorocarbon in a fluorinated solvent to at least a portion of an article supported on the support surface.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: August 5, 2014
    Assignee: Cytonix LLC
    Inventor: James F. Brown
  • Patent number: 8785556
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a fluorinated component and an adhesion promoter compound. The adhesion promoter compound can include an alkoxy group, a furfuryl-containing ring structure, and a reactive group.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: July 22, 2014
    Assignee: Cytonix, LLC
    Inventor: James F. Brown
  • Patent number: 8653213
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Compositions that include perfluorohexyl(meth)acrylate and a branched or high Tg monomer are provided as are articles coated with the polymerization product of the composition. Methods are also provided for forming hydrophobic coatings on articles.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: February 18, 2014
    Assignee: Cytonix, LLC
    Inventor: James F Brown
  • Patent number: 8563275
    Abstract: A method comprising subjecting one or more sample portion(s) to a single amplification step, thereby amplifying a single molecule in the sample portion to a detectable level, and, in some embodiments, then determining whether the sample portion contains at least one molecule of the target nucleic acid. In some embodiments, the sample portion is in a porous sample structure, or in a sample chamber which comprises means for minimizing diffusion of the sample portion, or in a sample chamber which is inside a microcapillary device, or in a sample retaining means.
    Type: Grant
    Filed: August 11, 2012
    Date of Patent: October 22, 2013
    Assignees: Applied Biosystems, LLC, The United States of America, as Represented by the Secretary, Department of Health and Human Services
    Inventors: James F. Brown, Jonathan E. Silver
  • Patent number: 8551698
    Abstract: A method comprising loading a sample into a microfluidic device which comprises plural sample chambers, subdividing the sample into a plurality of sample portions, such that respective sample portions are positioned in each of a plurality of the sample chambers, and subjecting the sample portions loaded into the respective sample chambers to at least a first amplification step. Each of the sample chambers has a respective volume such that if a sample portion positioned in the sample chamber comprises at least one molecule of a target nucleic acid, the target nucleic acid would attain a detectable concentration in the sample chamber after a single round of amplification.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 8, 2013
    Assignees: Applied Biosystems, LLC, The United States Department of Health and Human Services
    Inventors: James F. Brown, Jonathan E. Silver
  • Publication number: 20130177737
    Abstract: Substrates, surfaces, assemblies, kits, compositions, and methods are provided for forming touch screens and other appliance surfaces exhibiting good hydrophobicity, oleophobicity, and abrasion resistance. Methods are provided for increasing a population density of hydroxyl groups on a touch surface of a touch screen substrate without affecting the compressive strength of the back surface. The treated touch surface of the substrate can then be coated with a coating that includes an organo-metalic and/or silane, for example, a fluorosilane such as a perfluoropolyether alkoxysilane. A substrate can retain its compressive resistance to breakage by impact applied to the touch surface while minimizing any decrease in compressive strength against impact against the touch surface. Examples of such substrates include touch screens for mobile and desktop electronic devices, components of 3D display devices, and components for electrowetting display devices.
    Type: Application
    Filed: July 9, 2012
    Publication date: July 11, 2013
    Applicant: CYTONIX, LLC
    Inventor: James F. BROWN
  • Publication number: 20120301884
    Abstract: A method comprising subjecting one or more sample portion(s) to a single amplification step, thereby amplifying a single molecule in the sample portion to a detectable level, and, in some embodiments, then determining whether the sample portion contains at least one molecule of the target nucleic acid. In some embodiments, the sample portion is in a porous sample structure, or in a sample chamber which comprises means for minimizing diffusion of the sample portion, or in a sample chamber which is inside a microcapillary device, or in a sample retaining means.
    Type: Application
    Filed: August 11, 2012
    Publication date: November 29, 2012
    Inventors: James F. Brown, Jonathan E. Silver
  • Patent number: 8278071
    Abstract: A method comprising subjecting one or more sample portion(s) to a single amplification step, thereby amplifying a single molecule in the sample portion to a detectable level, and, in some embodiments, then determining whether the sample portion contains at least one molecule of the target nucleic acid. In some embodiments, the sample portion is in a porous sample structure, or in a sample chamber which comprises means for minimizing diffusion of the sample portion, or in a sample chamber which is inside a microcapillary device, or in a sample retaining means.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 2, 2012
    Assignees: Applied Biosystems, LLC, The United States Department of Health and Human Service
    Inventors: James F. Brown, Jonathan E. Silver
  • Patent number: 8257925
    Abstract: A miniaturized assembly is provided whereby a fluid sample can be divided into a plurality of sample portions in retaining wells and the sample fluid can be displaced from open ends of the wells while simultaneously being sealed in the wells. A method of dividing a fluid sample using the assembly is also provided.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: September 4, 2012
    Assignees: Applied Biosystems, LLC, The United States of America, as represented Department of Health and Human Services
    Inventors: James F. Brown, Jonathan E. Silver
  • Publication number: 20120214893
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a fluorinated component and an adhesion promoter compound. The adhesion promoter compound can include an alkoxy group, a furfuryl-containing ring structure, and a reactive group.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: CYTONIX LLC
    Inventor: James F. Brown
  • Patent number: 8221870
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions and coated articles. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a fluorinated component and non-fluorinated hardenable resin.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: July 17, 2012
    Assignee: Cytonix LLC
    Inventor: James F. Brown
  • Patent number: 8168264
    Abstract: Methods of forming a surface coating are provided. A first component can be applied to a surface and can include at least one adhesion promoter compound. The adhesion promoter compound can include (i) a furfuryl ring structure, (ii) a polymerizable reactive group, and (iii) an alkyloxy moiety linking the furfuryl ring structure to the polymerizable reactive group. A second component can be applied to the surface after the first component is applied to the surface, and the second component can include at least one fluorinated component including from about one to about 100 carbon atoms. The polymerizable reactive group can be polymerized to form a coating on the surface and the first component can improve adhesion of the second component to the surface.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 1, 2012
    Assignee: Cytonix LLC
    Inventor: James F. Brown
  • Publication number: 20120067908
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Compositions that include perfluorohexyl(meth)acrylate and a branched or high Tg monomer are provided as are articles coated with the polymerization product of the composition. Methods are also provided for forming hydrophobic coatings on articles.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 22, 2012
    Applicant: CYTONIX, LLC
    Inventor: James F. BROWN
  • Publication number: 20120063972
    Abstract: A microfluidic device comprising a first surface portion and a first sample retaining element, which have differing affinities to a fluid, and a method comprising supplying a sample to such a device. In some embodiments, the differing affinity is a result of plasma, ion embedding, surface charging, chemical, optical, electronic and/or electromagnetic treatment. Also, a microfluidic device comprising at least one microcapillary device having a sample retaining element, at least one surface of which exhibits hydrophobicity, hydrophilicity, electromagnetic force exertion and electrostatic force exertion. Also, a microfluidic device comprising a first element having a hydrophilic pattern comprising at least a first sample retaining element. Also, a method comprising supplying a sample to a channel between a first element and a second element, and inducing in the first element at least one hydrophilic pattern by electrets or by internal or external electrodes to provide a charged surface.
    Type: Application
    Filed: October 7, 2011
    Publication date: March 15, 2012
    Inventors: James F. BROWN, Jonathan E. Silver
  • Publication number: 20110311979
    Abstract: A miniaturized assembly is provided whereby a fluid sample can be divided into a plurality of sample portions in retaining wells and the sample fluid can be displaced from open ends of the wells while simultaneously being sealed in the wells. A method of dividing a fluid sample using the assembly is also provided.
    Type: Application
    Filed: May 16, 2011
    Publication date: December 22, 2011
    Inventor: James F. Brown