Patents by Inventor Leonard M. Petersen

Leonard M. Petersen 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).

  • Cooking apparatus
    Patent number: 4859833
    Abstract: A cooking pot of the waterless type has an electrical heating element in the thick base thereof. The heating element can be permanently embedded in the base. Alternatively the base can have a blind recess therein into which an electrical heating structure is inserted. This structure is removable from the recess. Various stands for supporting the pots and making electrical connections to the heating structures are also disclosed.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: August 22, 1989
    Inventor: Leonard M. Petersen
  • Combined child's cape and breastplate
    Patent number: D305576
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: January 23, 1990
    Assignee: Timeless Beginnings, Inc.
    Inventor: Leonard M. Petersen, Jr.