Patents by Inventor Nicholas J. Spragg

Nicholas J. Spragg 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).

  • Production of shaped bodies of boron compounds
    Patent number: 4661157
    Abstract: Boron compounds such as alkali metal or alkaline earth metal borates capable of forming hydrates or higher hydrates may be formed into shaped bodies by forming into a paste with water and allowing the water to be bound to form a solid shaped body. The bodies are useful as inserts into preformed cavities in structures, e.g. of wood, liable to insect, fungal or other infestation by virtue of the slow dissolution of the insert and the toxicity to such organisms of the boron compounds.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: April 28, 1987
    Assignee: Laporte Industries Limited
    Inventors: William Beauford, Nicholas J. Spragg, Malcolm Millar