Thanks for the response. I'm in the US, and I've got enough money. The main reward I'm interested in is seeing my work being put to good use and helping people.

Thanks for the response. I'm in the US, and I've got enough money. The main reward I'm interested in is seeing my work being put to good use and helping people. If I knew where to go, I could/would just hire someone to start the business and do all the work. Barring that, I may drop it rather than have to deal with the manufacturing contracts, staffing, certification, sales, and support stuff. I'm not even enthused about cold calling random firms and seeing what they have to say about manufacturing stuff, but I would like to see how that works and see if there's a way I could do this sort of work better in the future (failing going back to school for electrical engineering). As to licensing to an existing firm.. that's a good idea for some projects, but I don't think it'd work with the one I'm closest on right now. They'd have to be awfully progressive, otherwise it'd seem too far from their current business.