Patents by Inventor Patrick Lademan

Patrick Lademan 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).

  • Portable vocalizing device
    Patent number: 4788649
    Abstract: A portable speech vocalizer in which a user can select phonemes and phoneme combinations for display and sounding. Switches on keyboard or joystick allow selection of sounds in two different scanning modes, as well as selection of volume and inflection of sounds, and selection of duration or speed of sounds.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: November 29, 1988
    Assignee: Shea Products, Inc.
    Inventors: F. William Shea, James P. Shea, Patrick Lademan