Patents by Inventor Brian G. Sparkes

Brian G. Sparkes 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).

  • Chitosan based wound dressing materials
    Patent number: 4572906
    Abstract: The invention disclosed is a surgical dressing, particularly useful for the protection of wounds during the healing process. The dressing comprises a blend of gelatin and chitosan in a weight ratio of about 3:1 to 1:3 and a compatible plasticizer in an amount of 0-40% w/w based on the combined weight of gelatin and chitosan.
    Type: Grant
    Filed: October 2, 1984
    Date of Patent: February 25, 1986
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventors: Brian G. Sparkes, Douglas G. Murray