At first glance, I think it would be a capital intensive business. The only way I can think to make money would be licensing, which is expensive in terms of get

At first glance, I think it would be a capital intensive business. The only way I can think to make money would be licensing, which is expensive in terms of getting the legal work done and protecting and enforcing your intellectual property. Of course, you can always license it to someone else who can resell it, giving you royalties.