Patents by Inventor Patrick Knowles

Patrick Knowles 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: 20220128559
    Abstract: Representative implementations of devices and techniques provide an exemplary system and method for detection and surveillance of an infectious agent, and particularly an agent that is spread through respiratory aerosols. In an embodiment, the system and method include retrieving a face covering that contains oral and/or nasal, and/or skin secretions and/or skin flora on or within a material of the face covering, removing one or more samples of the material of the face covering that contains the secretions from the face covering, and depositing the one or more samples into a predetermined formulation.
    Type: Application
    Filed: October 21, 2021
    Publication date: April 28, 2022
    Applicant: VMRD, Inc.
    Inventors: Dennis Scott Adams, Ethan Jackson Adams, Siddra Arielle Hines, Andrew Kenneth Johnson, Donald Patrick Knowles, JR., Sampathkumar Srikanth, Joanna Rzepka
  • Patent number: 6325564
    Abstract: A long handle lotion applicator including an elongated handle portion having a closed outer end and an open inner end. A lotion housing is coupled with respect to the elongated handle portion. The lotion housing has an open inner end removably coupled with the open inner end of the handle portion. The lotion housing contains a quantity of lotion therein. The closed outer end of the lotion housing has an aperture therethrough. A tap portion is secured to the closed outer end of the lotion housing. The tap portion has a central tube having an open inner end and an open outer end. The open inner end is coupled with the aperture in the closed outer end of the lotion housing. A sponge portion is removably coupled with the tap portion and in communication with the open outer end of the central tube.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: December 4, 2001
    Inventor: Patrick Knowles
  • Patent number: 5877659
    Abstract: A method and apparatus for accomplishing a 90.degree. relative phase shift employing a high characteristic impedance outer leg of length .lambda./2 and a low characteristic impedance through leg of length .lambda./4. The high characteristic impedance outer leg is directly connected to the input and the output. The low characteristic impedance through leg is connected to the input and output with first and second diode paths. When the first and second diode paths are in the on state, the low characteristic impedance through leg receives a majority of the input power. Because of the impedance disparity between the high characteristic impedance outer leg and low characteristic impedance through leg, only a small amount of power is routed through the high characteristic impedance outer leg when the first and second diode paths are in the on state and the combined signal phase is not substantially effected.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 2, 1999
    Assignee: Northrop Grumman Corporation
    Inventors: Patrick Knowles, Timothy Waterman