Patents by Inventor Richard N. Zirnite

Richard N. Zirnite 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).

  • Bandage carrying ion-leachable cement compositions
    Patent number: 4335158
    Abstract: A method for producing a substrate carrying a cementitious composition is provided. The method involves dispersing a mixture of an ion-leachable, inorganic compound and a poly(carboxylic acid) in a liquid to form a coating mixture wherein the liquid is selected to be a non-aqueous, non-leachable liquid in which the poly(carboxylic acid) is substantially soluble. The coating mixture is then applied to the substrate.
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: June 15, 1982
    Assignee: Johnson & Johnson
    Inventors: Charles H. Beede, Richard N. Zirnite
  • Modifying agents for ion-leachable cement compositions
    Patent number: 4324591
    Abstract: A cementitious composition is provided which includes a dry ion-leachable glass powder and further includes an essentially water-insoluble non-hydroxylic polycarboxylic aromatic compound. The composition is usable in orthopedic bandages, and particularly those bandages which are activated by dipping the substrate carrying the compound into a water-containing vessel to activate the compound.
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: April 13, 1982
    Assignee: Johnson & Johnson
    Inventors: Charles H. Beede, Richard N. Zirnite
  • Modifiers for ion-leachable cement compositions
    Patent number: 4317681
    Abstract: A cementitious composition including dry ion-leachable glass powder and further including an agent for modifying the rate of setting. The agent is selected to include the d,l form of tartaric acid.
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: March 2, 1982
    Assignee: Johnson & Johnson
    Inventors: Charles H. Beede, Richard N. Zirnite