Patents by Inventor Rochelle Akrongold

Rochelle Akrongold 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).

  • Gel-impregnated sponge
    Patent number: 3949137
    Abstract: A gel-impregnated sponge having at least two layers of which at least one layer is impregnated with a hardened gel material and at least one layer is unimpregnated sponge material, the impregnated layer having a fibrous or fur-like coating on its outer surface areas.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: April 6, 1976
    Inventors: Harold S. Akrongold, Rochelle Akrongold