Canadian Patents Database - Search, retrieve and study patent documents and images, from the Canadian Intellectual Property Office. Patents1.ic.gc.ca/intro-e.html
Global Intellectual Property - Hierarchical Internet intellectual property directory, aimed at users and researchers working in the intellectual property field. Also listing conferences and events. www.ipmenu.com
PATLIB - A network of European patent information centres consisting of the national and regional patent offices of each member state. www.european-patent-office.org/patlib/index.htm
