• Canadian Patent Number Guide 

      White, Michael J. (Michael White, 2008-01-31)
      Reference guide to Canadian patent and industrial design numbers, 1824-present.
    • U.S. Patent Number Guide 

      White, Michael J. (Michael White, 2008-04-30)
      Guide to U.S. patent application and registration numbers, 1790-present. Includes utility, design, plant, reissue, additional improvements, defensive publications, statutory invention registrations and pre-grant publications.