Patents by Inventor Matthew D. McMahon

Matthew D. McMahon 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: 11615221
    Abstract: Exemplary practice of the present invention defines “sphibules” in computer-modeling the spread of a substance in a fluid medium. A “sphibule,” a modeling entity conceived and named by the present inventors, represents a discrete quantity of a substance that is propagative in a fluid medium. Every sphibule has the same size when created, the same constant geometric shape, the same constant mass, and a uniform density. Multiple sphibules are created at a prescribed rate at a source in the fluid medium. Several or many timesteps are performed to compute enlargement and relocation, in the fluid medium, of each sphibule that has been created. Through succeeding timesteps, each sphibule becomes less dense and more distant from the source. A sphibule ceases to exist when the sphibule is less dense than a prescribed minimum density of the sphibules, and/or when the sphibule travels beyond a prescribed spatial boundary of the fluid medium.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: March 28, 2023
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Matthew D. McMahon, Krzysztof J. Rutkowski, Stephen M. Farley
  • Patent number: 10289761
    Abstract: According to exemplary practice of the present invention, the dynamic trajectory of a moving body is incrementally modeled using temporal and spatial relationships between the body and the target that the body pursues. In each time step, the body has starting positional coordinates and ending positional coordinates. The horizontal travel distance is calculated by taking into account the body's speed and the body's horizontal distance from the target. The vertical travel distance is calculated by taking into account the body trajectory's spatial derivative and the body's horizontal travel distance. The body's time-step-ending positional coordinates thus reflect the change, in accordance with the horizontal travel distance and the vertical travel distance, relative to the body's time-step-starting positional coordinates. Each succeeding time step repeats the computations whereby the starting positional coordinates are the ending positional coordinates of the preceding time step.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 14, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Matthew D. McMahon