Patents by Inventor Steven T. Ewing

Steven T. Ewing 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).

  • Housing for a two-way ultrasonic ceiling sensor
    Patent number: D337542
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: July 20, 1993
    Assignee: Novitas, Inc.
    Inventors: Steven T. Ewing, Douglas M. Patton, Dennis L. Grudt
  • Housing for a one-way ultrasonic ceiling sensor
    Patent number: D337733
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: July 27, 1993
    Assignee: Novitas, Inc.
    Inventors: Steven T. Ewing, Douglas M. Patton, Dennis L. Grudt
  • Surgical handpiece shell
    Patent number: D351227
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: October 4, 1994
    Assignee: Alcon Laboratories, Inc.
    Inventors: Douglas M. Patton, Steven T. Ewing