Again, that's a very good question.
The patent is something that can be sold or assigned or licensed. That's provided for, and it's kind of intrinsic to the idea of taking an invention then marketing it.
With respect to the question of patent portfolios moving from Canada to the United States in the context of an investment takeover—an American company or somebody else buys a Canadian company—if that company qualifies for a net benefit review under the Investment Canada Act, then that process would be triggered.