Filing Patents in Canada: a practical guide about filing patents into Canada. Most guide for patent attorneys and their clients from outside Canada already filing a patent elsewhere (PCT or direct filing). Patents for Canadians: a practical guide for Canadian inventors and innovators. What you need to know about patents before you file one. Profiting from inventions. A practical guide for inventors and innovators about how to profit from inventions. When to patent, when not to. Discusses other IP rights, invention brokers, etc.