Yes, many of our companies have patents on manufacturing methods, for instance. One of the attributes of the generic pharmaceutical industry is that they are very efficient at manufacturing and distributing large numbers of products. Our large companies could be making 300, 400, or 500 different products. They're very efficient as to how to do that. They will often protect business methods, business processes, manufacturing methods by patents. That is something we have and we use it.
It typically would not prevent a competitor from manufacturing the same product. It's simply a competitive advantage in how the product is brought to market, and lowering the costs of that.