Patents by Inventor Margaret Emily Gray

Margaret Emily Gray 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).

  • Automatic flooring type detector
    Patent number: 11835488
    Abstract: An acoustic apparatus and method of determining the composition of a floor, based on the filtered sound waves produced by vibrating the floor is disclosed. The apparatus includes a transducer for generating vibrations and/or sound, as well as microphones for detecting sounds. The apparatus may include two microphones so that ambient noise can be removed from an audio signal.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: December 5, 2023
    Assignee: United Services Automobile Association (USAA)
    Inventors: Eric David Schroeder, Donnette Moncrief Brown, Manfred Amann, Bobby Lawrence Mohs, Robert Wiseman Simpson, Meredith Beveridge Lecocke, Margaret Emily Gray