Probably the biggest barrier is cost, because you have to register in every country, so as a general rule, our company focuses on the United States and Canada.
The United States probably accounts for 60% of our sales. A standard patent for us costs $25,000. That's what it costs in legal and consulting...to get it through. Then you start to add every country. A simple patent that may be worthless could cost you $100,000 to $150,000 to make it global, because you have to fight each and every country.
You have to do a cost and risk analysis. Maybe we'll get a patent in Canada and the U.S. and not apply in Russia. Then the product starts to sell to Russia, and we say that we should have done that, and the next thing you know, there are people copying our product in Russia, and they have every right because we have no patent.
A lot of it is the cost of registering a patent in every single country. Countries have different legal requirements, and it's very painful and expensive.