Patents by Inventor Alan L. Heath

Alan L. Heath 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: 4502789
    Abstract: A clock for indicating time for effectively all the countries and time zones of the world, the hour hand of the clock being in the form of a disc that rotates once every twenty-four hours against a twenty-four hour scale. The disc having projected thereon a map of the world centered on the South Pole with the majority of the time zones positioned in accurate longitude around the periphery of the disc. The clock also included indicators for each time zone to provide simple visual indication of the time in any zone or country of the world.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: March 5, 1985
    Inventor: Alan L. Heath