Patents by Inventor Peter Maurice Lock

Peter Maurice Lock 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).

  • Surgical dressings
    Patent number: 3978266
    Abstract: A foam material for use especially as a surgical dressing of the formula containing stannous octoate and a chlorofluoromethane and comprised of a polyether based polyurethane having a compressed dense surface which is absorbent to fluids as contrasted with the remaining uncompressed foam which is non-absorbent; the compressed dense surface containing foam cells which have only been partially collapsed as compared to the uncollapsed foam cells of the non-absorbent material.
    Type: Grant
    Filed: September 13, 1973
    Date of Patent: August 31, 1976
    Assignee: Ionics Lyo Products Company
    Inventor: Peter Maurice Lock
  • Surgical dressings
    Patent number: 3975567
    Abstract: A polyurethane foam article, preferably a surgical dressing, at least one surface of which is rendered lyophilic by applying pressure and heat to said surface.
    Type: Grant
    Filed: October 5, 1972
    Date of Patent: August 17, 1976
    Assignee: Ionics Lyo Products Company
    Inventor: Peter Maurice Lock