Patents by Inventor Howard P. Leshner

Howard P. Leshner 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).

  • Telephone-computer interface
    Patent number: 6931120
    Abstract: An electronic circuit for connecting a standard analog telephone to the analog microphone and loudspeaker connections on a personal computer and for separating the talk signal from the combined talk/listen signal occurring at the telephone, effectively minimizing undesirable echo.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: August 16, 2005
    Assignee: MHL Communications, Inc.
    Inventors: Michael D. Leshner, Howard P. Leshner