Patents by Inventor Lawrence Ondercin

Lawrence Ondercin 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).

  • Magnetic recording tape
    Patent number: 4643949
    Abstract: Magnetic recording tape comprising a flexible substrate with magnetic particles secured to the substrate by means of a binder comprising a reaction product of a diisocyanate with a blend of a chain extender and a hydroxyl terminated polycarbonate, said binder having high tensile strength, is hydrolytically stable, and is soluble in selected commercial solvents.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: February 17, 1987
    Assignee: The BF Goodrich Company
    Inventors: Edmond G. Kolycheck, Lawrence Ondercin