Patents by Inventor Charles B. Boenning

Charles B. Boenning 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).

  • Door-mounted combination intercom and viewer
    Patent number: 4584436
    Abstract: An improved door-mounted combination intercom and viewer is provided including a pair of identical housings, each having a microphone and a speaker therein. The microphones are isolated from contact with the housings by a vibration damping material to prevent feedback.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: April 22, 1986
    Assignee: Claiborne Electronics, Inc.
    Inventors: Charles B. Boenning, Charles J. Moorman
  • Combined door viewer and two-way intercom unit
    Patent number: D283130
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: March 25, 1986
    Assignee: Claiborne Electronics, Inc.
    Inventor: Charles B. Boenning