Patents by Inventor Jeff Applegate

Jeff Applegate 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).

  • Compact quadrature mach-zehnder interferometer
    Patent number: 10613229
    Abstract: An interferometer is provided. The interferometer includes a multifaceted beamsplitter. Angles of incidence between beams entering the beamsplitter and a beamsplitting surface of the beamsplitter are less than 45 degrees. The arms of the interferometer feature a refractive compensator or a catseye optical configuration to provide an optical path length difference for rays that is the same at any location along the effective aperture of the interferometer. A detector assembly can be included with at least four detectors that lie in a plane and that receive light along paths that are orthogonal to that plane.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: April 7, 2020
    Assignee: Ball Aerospace & Technologies Corp.
    Inventors: Jeff Applegate, Jason Micali, Sara C. Tucker
  • COMPACT QUADRATURE MACH-ZEHNDER INTERFEROMETER
    Publication number: 20200064484
    Abstract: An interferometer is provided. The interferometer includes a multifaceted beamsplitter. Angles of incidence between beams entering the beamsplitter and a beamsplitting surface of the beamsplitter are less than 45 degrees. The arms of the interferometer feature a refractive compensator or a catseye optical configuration to provide an optical path length difference for rays that is the same at any location along the effective aperture of the interferometer. A detector assembly can be included with at least four detectors that lie in a plane and that receive light along paths that are orthogonal to that plane.
    Type: Application
    Filed: February 1, 2019
    Publication date: February 27, 2020
    Applicant: Ball Aerospace & Technologies Corp.
    Inventors: Jeff Applegate, Jason Micali, Sara C. Tucker
  • Platform barrier for visually impaired pedestrians
    Patent number: D620823
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 3, 2010
    Assignee: Impact Recovery System, Inc.
    Inventors: Gregory L. Hannah, Jeff Applegate
  • Platform barrier for visually impaired pedestrians
    Patent number: D620824
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 3, 2010
    Assignee: Impact Recovery System, Inc.
    Inventors: Gregory L. Hannah, Jeff Applegate
  • Platform barrier for visually impaired pedestrians
    Patent number: D620825
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 3, 2010
    Assignee: Impact Recovery System, Inc.
    Inventors: Gregory L. Hannah, Jeff Applegate