If you’re a manufacturer wanting to incorporate a Blu-Ray device in your product, you need to negotiate a license with each of the three bodies that represent the various patent holders – 18 in total.
This is an example of the gridlock economy, the problem caused by ownership distributed between multiple parties.
It’s a form of complexity that increases the cost and risk to your customers, reducing the benefits they receive (and in turn the price they’re prepared pay you!).
And it’s a hurdle that prevents your customers from making your product a raging success (because you can’t and only they can).