Patents by Inventor Kare Ragnvald Fossan

Kare Ragnvald Fossan 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).

  • Colored composition of explosives
    Patent number: 4063975
    Abstract: A stained explosive composition in a water-gelatin base is made from oxidizing salts and at least one water-insoluble hydrocarbon which has dissolved therein a water-insoluble coloring material.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: December 20, 1977
    Assignee: Nitro Nobel AB
    Inventors: Kare Ragnvald Fossan, Gunnar Olof Ekman