Patents by Inventor Richard Wand

Richard Wand 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).

  • Protection of supply metering
    Patent number: 5200646
    Abstract: The invention relates to an apparatus for protecting electronic circuitry against interfering high voltage discharges, the electronic circuitry being of the nature which controls the operation of a meter. A memory is provided on which a pattern of signals is stored by a watchdog circuit. When an orderly shutdown of the controller occurs, for example due to credit expiry, and when the controller is restored to power, the watchdog circuit reads the memory and generates a shutdown control signal if the stored signal pattern is not preset in the memory.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: April 6, 1993
    Assignee: Ampy Automation-Digilog Limited
    Inventors: Richard Wand, Kenneth Payne
  • Tableware
    Patent number: D845714
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 16, 2019
    Assignee: WANDSIP PTY LTD
    Inventor: Richard Wands
  • Tableware
    Patent number: D869239
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: December 10, 2019
    Assignee: WANDSIP PTY LTD
    Inventor: Richard Wands
  • Cup
    Patent number: D873620
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: January 28, 2020
    Assignee: WANDSIP PTY LTD
    Inventor: Richard Wands