Patents by Inventor Emery I. Valko, deceased

Emery I. Valko, deceased 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).

  • Compositions and process for imparting durable flame resistance to cellulosic textiles
    Patent number: 4092108
    Abstract: Flame resistance is imparted to cellulosic textiles by the application of compositions prepared by reacting phosphonic acid derivatives with ammonia or appropriate amine compounds. Textile compositions thusly obtained exhibit levels of flame resistance which remain essentially unchanged after 50 or more launderings. A comparison of textiles containing the instant compositions to textiles containing prior art flame retardants using verticle flammability tests, reveals that flame resistant textiles of the invention required one half or less of the amount of added compositions to pass the test as did prior art textiles.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: May 30, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Emery I. Valko, deceased, Giuliana C. Tesoro, Walter F. Olds