Patents by Inventor Michael S. Lowry

Michael S. Lowry 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: 10734732
    Abstract: An optically tunable metamaterial unit cell is provided for photonic switching. The cell is optically tunable and includes a dielectric substrate with upper and lower surfaces. The cell further includes arrays of metamaterial elements and a layer of photo-capacitive material. The arrays are disposed the upper surface of the dielectric substrate. The metamaterial is capable of reflecting electromagnetic radiation. The layer of photo-capacitive material overlaps the arrays of metamaterial elements. The photo-capacitive material is optically tunable.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 4, 2020
    Assignee: United States of America, as represented by the Secretary of the Navy
    Inventors: Simin Feng, Kevin A. Boulais, Walter D. Sessions, Pearl Rayms-Keller, Robert B. Nichols, William F. Smith, Karen J. Long, Michael S. Lowry
  • Patent number: 10615506
    Abstract: A control device is provided for photonic switching. The device includes an optically tunable metamaterial unit cell. This structure includes a dielectric substrate; at least two arrays of metamaterial elements located on the top surface thereof, the metamaterial being capable of reflecting electromagnetic radiation, and a layer of photo-capacitive material overlapping the at least two arrays of metamaterial elements, the photo-capacitance of the photo-capacitive material being optically tunable; and a reflectarray or phased array system containing the unit cell.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: April 7, 2020
    Assignee: United States of America, as represented by the Secretary of the Navy
    Inventors: Simin Feng, Kevin A. Boulais, Walter D. Sessions, Pearl Rayms-Keller, Robert B. Nichols, William F. Smith, Karen J. Long, Michael S. Lowry
  • Publication number: 20190358018
    Abstract: A method for preparing a prosthetic valve and a delivery system for an implantation procedure. The method comprises (a) obtaining a tray, the tray containing the delivery system, the prosthetic valve coupled to the delivery system, and a valve cover in which the prosthetic valve is disposed. The tray comprises a storage cavity comprising an open end, a floor, and a peripheral side wall defining the depth of the cavity, wherein the prosthetic valve and the valve cover are disposed in the storage cavity; and a mounting surface that substantially immobilizes and maintains the valve cover and prosthetic valve within the storage cavity. The method further comprises (b) at least partially filing the storage cavity with a first hydrating fluid to completely immerse the prosthetic valve; and (c) removing the delivery device with the prosthetic valve from the tray, including disengaging the prosthetic valve from the mounting surface.
    Type: Application
    Filed: July 9, 2019
    Publication date: November 28, 2019
    Inventors: Vipul P. Rajpara, Darshin S. Patel, Michael R. Bialas, Brian R. Lowry, Russ Hunton, Arvin T. Chang
  • Patent number: 10350047
    Abstract: A packaging system for storing a prosthetic valve and an elongated delivery system in a non-fluid environment. The packaging system includes a tray for securing both a prosthetic valve and an elongated delivery system. The tray includes a cavity sized and shaped to house a valve cover containing the prosthetic valve and at least part of the distal portion of the elongated delivery system. A mounting surface removably couples the valve cover to the cavity floor and to prevent the valve cover from moving. An engaging surface is disposed peripherally of the cavity and is elevated above the cavity floor. A ramp extends downwardly from the engaging surface and into the cavity through an opening defined in the peripheral side wall and adjacent the floor of the cavity. The engaging surface and ramp are configured to secure at least part of the elongated delivery system externally of the cavity.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: July 16, 2019
    Assignee: Edwards Lifesciences Corporation
    Inventors: Vipul P. Rajpara, Darshin S. Patel, Michael R. Bialas, Brian R. Lowry, Russ Hunton, Arvin T. Chang
  • Publication number: 20180166596
    Abstract: A photoconductive device is provided for changing dielectric properties in response to select electromagnetic radiation. The device includes an optical core, an optical filter disposed on the core, and an optically clear insulator disposed on the filter. One example core is a quantum dot. Another example core is an optically clear core overlaid by a photoconductive coating disposed thereon.
    Type: Application
    Filed: May 23, 2017
    Publication date: June 14, 2018
    Applicant: United States of America, as represented by the Secretary of the Navy
    Inventors: Kevin A. Boulais, Michael S. Lowry, Simin Feng, Robert B. Nichols, Mark E. Preddy
  • Patent number: 9524809
    Abstract: A dielectric composite material is provided for switch control by optical stimulus. The material includes a plurality of photo-conductive particulates; and a transparent binder for containing the plurality of particulates to form a photo-conductive pigment based matrix. The pigment based matrix is disposed on to overlap first and second separate electrodes to produce an electrical junction. Capacitance of the pigment based matrix changes from a first value absent the optical stimulus to a second value in response to illumination at a specific electromagnetic frequency and intensity by the optical stimulus.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: December 20, 2016
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kevin A. Boulais, Simin Feng, Pearl Rayms-Keller, Michael S. Lowry, Francesco Santiago
  • Patent number: 8784704
    Abstract: A material is provided for switching dielectric constant between distinct first and second values responsive to electromagnetic radiation having a specified energy. The material includes a medium transparent to the radiation and a plurality of particulates. Each particulate has a dipole that assumes one of distinct first and second parameters that correspond to the first and second values. The particulates are suspended within the medium. The parameters are either dipole span or charge strength. The dipole of each particulate sets to the first parameter by default and sets to the second parameter in response to the radiation. The particulates can be composed from undoped semi-insulating gallium arsenide. The medium can be polymethylmethacrylate, for example.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: July 22, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kevin A. Boulais, Pearl Rayms-Keller, Michael S. Lowry, Francisco Santiago, Karen J. Long, Walter D. Sessions, Natasha Laguodas Wilkerson, Reniery Cevallos
  • Publication number: 20140061507
    Abstract: A material is provided for switching dielectric constant between distinct first and second values responsive to electromagnetic radiation having a specified energy. The material includes a medium transparent to the radiation and a plurality of particulates. Each particulate has a dipole that assumes one of distinct first and second parameters that correspond to the first and second values. The particulates are suspended within the medium. The parameters are either dipole span or charge strength. The dipole of each particulate sets to the first parameter by default and sets to the second parameter in response to the radiation. The particulates can be composed from undoped semi-insulating gallium arsenide. The medium can be polymethylmethacrylate, for example.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: United States Government, as Represented by the Secretary of the Navy
    Inventors: Kevin A. Boulais, Alfredo N. Rayms-Keller, Michael S. Lowry, Francisco Santiago, Karen J. Long, Walter D. Sessions, Natasha Laguodas Wilkerson, Reniery Cevallos