Patents by Inventor Lawrence E. Egbert

Lawrence E. Egbert 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).

  • Microwave oven leak detector
    Patent number: 4467278
    Abstract: A liquid crystal film pack for detecting leakage from a microwave oven by passing the moist film pack adjacent the joints and seams of the oven to produce a color change in the liquid crystal material in response to a microwave radiation leak.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: August 21, 1984
    Inventors: Emery K. Toth, Lawrence E. Egbert
  • Skinning knife
    Patent number: 4198751
    Abstract: A skinning knife having a notched cutting edge which opens toward the knife handle, and an enlargement on one side of the notch which permits the user to slice the hide of an animal without cutting the underlying flesh.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: April 22, 1980
    Inventor: Lawrence E. Egbert