Patents by Inventor John Michael Johnson

John Michael Johnson 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: 9531287
    Abstract: A transformer with a receptacle uniquely adapted on one side to receive the plug on the end of the power cord of a U.S. built 30 A RV and a plug on the other side adapted to connect to receptacles in foreign campgrounds and thereby convert 220 volts of electricity to 110 volts. The transformer also employs a circuit breaker in the hot lead from the circuit employed in the transformer.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 27, 2016
    Inventor: John Michael Johnson
  • Patent number: 8971083
    Abstract: A transformer for connecting a 50 A RV normally wired for 110 volts of electricity to foreign receptacles providing 220 volts of electricity. The transformer employs two cords on the input side of the transformer that can be connected to the two receptacles normally provided between side-by-side campsites in a campground. The transformer also employs a separate circuit breaker in each hot lead on the secondary side of the circuit employed in the transformer.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 3, 2015
    Inventor: John Michael Johnson
  • Publication number: 20140366861
    Abstract: An electric teppanyaki grill mounted on two rails slideably fastened inside a compartment and connected to a source of electric current wherein the teppanyaki grill can be extended outside of the compartment on the rails to provide a safe and efficient cooking surface. The grill is especially suited for use in recreational vehicles.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 18, 2014
    Inventor: John Michael Johnson