Patents by Inventor Leonard E. Ravich

Leonard E. Ravich 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).

  • Patent number: 4004711
    Abstract: This invention relates to a disposable wet towel characterized by an ability to evolve heat immediately prior to use or in use such that the temperature of the towel is increased by as much as 25.degree. or more above ambient when applied to the skin. The evolution of heat is due to the admixture of a reducing agent and an oxidizing agent reactive with said reducing agent which agents are kept separated prior to use of the towel and mixed when the towel is put into use. The agents and products resulting from the reaction thereof are not irritating to the skin. The invention also provides pouches for storing said towels prior to use which pouches contain means for maintaining said oxidizing agent and reducing agent isolated from each other.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: January 25, 1977
    Assignee: Gorham International Inc.
    Inventor: Leonard E. Ravich