Patents by Inventor Ian H. Dryburgh

Ian H. Dryburgh 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).

  • Lavatory cubicle door sliding bolt
    Patent number: D286133
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: October 14, 1986
    Assignee: Venesta International Components Limited
    Inventors: Ian H. Dryburgh, Peter N. G. Murdoch