Patents by Inventor Edwin E. Hedeen

Edwin E. Hedeen 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: 5640459
    Abstract: A portable voice amplifier includes a casing providing a housing and including a flat base, a curved front wall extending from the base upwardly and over the base, when viewed from the side, to the top of the unit. A speaker is mounted in the lower portion of the curved front wall, and the casing includes a lower section partially formed by the lower portion of the curved front wall and having a progressively narrow depth preceding from the base to approximately the midsection of the casing. An upper section of the housing has generally uniform depth and width from the midsection to the top of the unit. The upper section is designed to be held conveniently by the hand of the user, with a microphone located on the rear of the upper housing section so that in normal use the entire unit extends below the face of the user and is conveniently and comfortably held with a single hand.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: June 17, 1997
    Inventor: Edwin E. Hedeen
  • Patent number: D363718
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: October 31, 1995
    Inventor: Edwin E. Hedeen