Patents by Inventor David Alvin Tyvoll

David Alvin Tyvoll 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).

  • Publication number: 20230366117
    Abstract: Embodiments of methods and apparatuses for forming the metal oxide nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure that can include both titanium oxide and nickel oxide. The nanostructure can be formed on the surface(s) of an implantable medical device, such as a stent.
    Type: Application
    Filed: March 7, 2023
    Publication date: November 16, 2023
    Inventors: David Alvin TYVOLL, Nan CHEN, Bharat Kumar MENON, Heather Michelle GRANDIN, Jenna Brynne LUBET
  • Patent number: 11643743
    Abstract: Embodiments of methods and apparatuses for forming the metal oxide nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure that can include both titanium oxide and nickel oxide. The nanostructure can be formed on the surface(s) of an implantable medical device, such as a stent.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 9, 2023
    Assignee: ALFRED E. MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: David Alvin Tyvoll, Bharat Kumar Menon, Nan Chen, Heather Michelle Grandin, Harald Nuhn, Jenna Brynne Lubet
  • Patent number: 11608565
    Abstract: Embodiments of nanostructures comprising metal oxide and methods for forming the nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure containing both titanium oxide and nickel oxide. The nanostructure can include a lattice layer disposed on top of a nanotube layer. The distal surface of the lattice layer can have a titanium oxide to nickel oxide ratio of greater than 10:1, or about 17:1, resulting in a nanostructure that promotes human endothelial cell migration and proliferation at the interface between the lattice layer and human cells or tissue. The nanostructure may be formed on the outer surface of an implantable medical device, such a stent or an orthopedic implant (e.g. knee implant, bone screw, or bone staple).
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: March 21, 2023
    Assignee: Alfred E. Mann Institute for Biomedical Engineering at the University of Southern California
    Inventors: David Alvin Tyvoll, Nan Chen, Bharat Kumar Menon, Heather Michelle Grandin, Cesar Escobar Blanco
  • Publication number: 20220106697
    Abstract: Embodiments of nanostructures comprising metal oxide and methods for forming the nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure containing both titanium oxide and nickel oxide. The nanostructure can include a lattice layer disposed on top of a nanotube layer. The distal surface of the lattice layer can have a titanium oxide to nickel oxide ratio of greater than 10:1, or about 17:1, resulting in a nanostructure that promotes human endothelial cell migration and proliferation at the interface between the lattice layer and human cells or tissue. The nanostructure may be formed on the outer surface of an implantable medical device, such a stent or an orthopedic implant (e.g. knee implant, bone screw, or bone staple).
    Type: Application
    Filed: December 14, 2021
    Publication date: April 7, 2022
    Inventors: David Alvin Tyvoll, Nan Chen, Bharat Kumar Menon, Heather Michelle Grandin, Cesar Escobar Blanco
  • Patent number: 11230787
    Abstract: Embodiments of nanostructures comprising metal oxide and methods for forming the nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure containing both titanium oxide and nickel oxide. The nanostructure can include a lattice layer disposed on top of a nanotube layer. The distal surface of the lattice layer can have a titanium oxide to nickel oxide ratio of greater than 10:1, or about 17:1, resulting in a nanostructure that promotes human endothelial cell migration and proliferation at the interface between the lattice layer and human cells or tissue. The nanostructure may be formed on the outer surface of an implantable medical device, such a stent or an orthopedic implant (e.g. knee implant, bone screw, or bone staple).
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: January 25, 2022
    Assignee: Alfred E. Mann Institute for Biomedical Engineering at the University of Southern California
    Inventors: David Alvin Tyvoll, Nan Chen, Bharat Kumar Menon, Heather Michelle Grandin, Cesar Escobar Blanco
  • Publication number: 20210238764
    Abstract: Embodiments of methods and apparatuses for forming the metal oxide nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure that can include both titanium oxide and nickel oxide. The nanostructure can be formed on the surface(s) of an implantable medical device, such as a stent.
    Type: Application
    Filed: September 13, 2019
    Publication date: August 5, 2021
    Inventors: David Alvin TYVOLL, Bharat Kumar MENON, Nan CHEN, Heather Michelle GRANDIN, Harald NUHN, Jenna Brynne LUBET
  • Publication number: 20200240034
    Abstract: Embodiments of nanostructures comprising metal oxide and methods for forming the nanostructure on surfaces are disclosed. In certain embodiments, the nanostructures can be formed on a substrate made of a nickel titanium alloy, resulting in a nanostructure containing both titanium oxide and nickel oxide. The nanostructure can include a lattice layer disposed on top of a nanotube layer. The distal surface of the lattice layer can have a titanium oxide to nickel oxide ratio of greater than 10:1, or about 17:1, resulting in a nanostructure that promotes human endothelial cell migration and proliferation at the interface between the lattice layer and human cells or tissue. The nanostructure may be formed on the outer surface of an implantable medical device, such a stent or an orthopedic implant (e.g. knee implant, bone screw, or bone staple).
    Type: Application
    Filed: September 21, 2018
    Publication date: July 30, 2020
    Inventors: David Alvin Tyvoll, Nan Chen, Bharat Kumar Menon, Heather Michelle Grandin, Cesar Escobar Blanco
  • Patent number: 10196604
    Abstract: Disclosed are certain heterocyclic organic compounds that inhibit mitochondrial respiration and also lead to the maintenance of pluripotency of human embryonic stem cells in culture, even in the presence of oxygen. Exemplified are compounds, such as substituted 5-aminotetrazoles, which are reversible mitochondrial inhibitors. The pluripotency of the stem cells after culture is verified by the overexpression of pluripotent stem cell markers, exemplified by at least one of the genes NANOG, OCT4, and SURVIVIN after periods of culture in ambient oxygen.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 5, 2019
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Board of Regents of the University of Texas System
    Inventors: David Alvin Tyvoll, Christopher S. Navara, James P. Collman, Christopher Jeffrey Barile
  • Patent number: 9918964
    Abstract: It has been discovered that inhibiting mitochondrial respiration in platelets reduces platelet activation or platelet aggregation. Certain heterocyclic compounds significantly reduced one or more platelet functions including clumping, sticking or platelet-stimulated clotting. Thus diseases or disorders mediated by inappropriately high levels of platelet activation or platelet aggregation can be treated by administering a therapeutically effective amount of a heterocyclic compound or nonheterocyclic mitochondrial inhibitor that significantly reduces one or more platelet functions including clumping, sticking or platelet-stimulated clotting, preferably in a reversible manner.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: March 20, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: James P. Collman, Paul Clifford Herrmann, David Alvin Tyvoll, Richard Decreau, Brian Stanley Bull, Christopher Jeffrey Barile
  • Publication number: 20170130198
    Abstract: Disclosed are certain heterocyclic organic compounds that inhibit mitochondrial respiration and also lead to the maintenance of pluripotency of human embryonic stem cells in culture, even in the presence of oxygen. Exemplified are compounds, such as substituted 5-aminotetrazoles, which are reversible mitochondrial inhibitors. The pluripotency of the stem cells after culture is verified by the overexpression of pluripotent stem cell markers, exemplified by at least one of the genes NANOG, OCT4, and SURVIVIN after periods of culture in ambient oxygen.
    Type: Application
    Filed: June 19, 2015
    Publication date: May 11, 2017
    Inventors: David Alvin Tyvoll, Christopher S. Navara, James P. Collman, Christopher Jeffrey Barile
  • Publication number: 20110301180
    Abstract: It has been discovered that inhibiting mitochondrial respiration in platelets reduces platelet activation or platelet aggregation. Certain heterocyclic compounds significantly reduced one or more platelet functions including clumping, sticking or platelet-stimulated clotting. Thus diseases or disorders mediated by inappropriately high levels of platelet activation or platelet aggregation can be treated by administering a therapeutically effective amount of a heterocyclic compound or nonheterocyclic mitochondrial inhibitor that significantly reduces one or more platelet functions including clumping, sticking or platelet-stimulated clotting, preferably in a reversible manner.
    Type: Application
    Filed: April 25, 2011
    Publication date: December 8, 2011
    Applicant: Stanford University
    Inventors: James P. Collman, Paul Clifford Herrmann, David Alvin Tyvoll, Richard Decreau, Brian Stanley Bull, Christopher Jeffrey Barile
  • Publication number: 20090010811
    Abstract: An illumination system enhances a manual human process associated with a multiwell plate having an array of wells thereon. The illumination system includes a compact self-contained apparatus including an illuminator coupled to a human interface. The human interface is configured to receive an operating parameter input and a start input. The illuminator has a protective surface for receiving the well plate and a plurality of underlying light sources configured to initiate a sequence of different well subarray indications in response to the start input and pursuant to the operating parameter input.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 8, 2009
    Inventors: Richard T. L. Chan, Winston Glenn Walker, David Alvin Tyvoll
  • Patent number: 6176908
    Abstract: Aqueous, fluorescent red ink jet inks which meet US Postal Service requirements for metered mail are disclosed and comprise an aqueous vehicle, a red or magenta pigment, a polymeric dispersant, a fluorescent dye and, optionally a hydrotrope additive.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard D. Bauer, John Morrow Gardner, Loretta Ann Grezzo Page, David Alvin Tyvoll