Patents by Inventor Steven W. Day

Steven W. Day 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: 11899026
    Abstract: The present invention provides point-of-care blood typing devices. The devices require only a small sample of blood and are able to provide results within minutes. The devices are capable of identifying A, B, AB, and O type blood. The devices are also capable of identifying blood that is positive (+) or negative (?) for the D antigen.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: February 13, 2024
    Assignee: University of Rochester, Rochester Institute of Technology
    Inventors: Majed J. Refaai, Steven W. Day
  • Publication number: 20240023898
    Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.
    Type: Application
    Filed: February 27, 2023
    Publication date: January 25, 2024
    Applicant: Rochester Institute of Technology
    Inventors: David A. BORKHOLDER, STEVEN W. DAY, JEFFREY S. LILLIE, Alexander S. Liberson
  • Patent number: 11622730
    Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 11, 2023
    Assignee: Rochester Institute of Technology
    Inventors: David A. Borkholder, Alexander S. Liberson, Jeffrey S. Lillie, Steven W. Day
  • Publication number: 20210102962
    Abstract: The present invention provides point-of-care blood typing devices. The devices require only a small sample of blood and are able to provide results within minutes. The devices are capable of identifying A, B, AB, and O type blood. The devices are also capable of identifying blood that is positive (+) or negative (?) for the D antigen.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 8, 2021
    Inventors: Majed J. Refaai, Steven W. Day
  • Publication number: 20190083045
    Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 21, 2019
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Alexander S. Liberson, Jeffrey S. Lillie, Steven W. Day
  • Publication number: 20090039995
    Abstract: A permanent magnet device includes a polarized permanent annular magnet having two oppositely charged poles faces. A magnetically conductive faceplate is disposed on each of the opposite pole faces of the permanent magnet. Each faceplate is sized, shaped and oriented to equally distribute the flux lines emanating from the permanent magnet, and to increase or concentrate the density of the magnetic flux field of a permanent magnet or permanent magnet device.
    Type: Application
    Filed: July 8, 2008
    Publication date: February 12, 2009
    Inventors: Ronald Kipp, Steven W. Day, Don B. Olsen
  • Patent number: 7229258
    Abstract: A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings (passive permanent and active electromagnetic) having impeller magnets on the impeller and stator magnets or coils/poles on the stator. A motor includes impeller magnets on the impeller and coils/poles associated with the stator. A single, annular blood flow path extends axially through the cavity between the impeller and the stator, and between the impeller magnets on the impeller and the stator magnets or the coils/poles on the stator.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 12, 2007
    Assignees: Medforte Research Foundation, University of Virginia Patent Foundation
    Inventors: Houston G. Wood, Paul E. Allaire, Don B. Olsen, Steven W. Day, Xinwei Song, Alex Untaroiu, Amy Throckmorton
  • Patent number: 5957663
    Abstract: A cooling system for an automotive vehicle of the type having a radiator through which a coolant fluid flows includes a fan motor for driving a fan which moves air through the radiator; an alternator for supplying an output voltage to the fan motor; and a voltage regulator which selectively excites the alternator's field winding in response to a control signal, determined on the basis of at least one operational parameter of the vehicle indicative of the cooling requirements of the engine which powers the vehicle to control the output voltage of the alternator, thereby controlling the speed of the fan motor.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 28, 1999
    Assignee: Bosch Automotive Motor Systems Corp.
    Inventors: Robert J. Van Houten, Steven W. Day