Patents by Inventor Paul A. Grenga

Paul A. Grenga 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).

  • Tire sealant composition
    Patent number: 5059636
    Abstract: A non-petroleum based, environmentally safe tire sealant composition is prepared. The major ingredients in same are finely ground rubber, calcium chloride, all-purpose wheat flour and water. To these major ingredients are added a relatively small amount of sodium nitrite, and substantially smaller amounts of a vegetable oil and a de-foaming agent.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 22, 1991
    Inventor: Paul A. Grenga