Patents by Inventor Edmund R. Pennartz

Edmund R. Pennartz 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).

  • Fire extinguishing and inhibiting material
    Patent number: 5091097
    Abstract: In one embodiment of the present invention, a fire extinguishing and inhibiting material comprising potassium hydroxide, citric acid, diammonium phosphate, and urea in an aqueous solution is applied to an object to extinguish and inhibit fires. In accordance with another embodiment of the present invention, a film-forming extinguishing material comprising potassium hydroxide, citric acid, diammonium phosphate, urea, surfactant, and trichloroethylene is applied to liquid fuel and self-propelled liquid fuel fires to extinguish and inhibit combustion.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: February 25, 1992
    Assignee: Old Firehand Corporation
    Inventor: Edmund R. Pennartz