Licensing
If you are an inventor, licensing is the quickest, least-costly route to making money on your idea; but it does not always work. Increasingly, larger corporations are buying companies that have a unique product. A good brand also helps. But if you have a really good idea, and a company that recognizes it, you can negotiate between 2 and 15% royalties on top line sales. This pushes the manufacturing investment onto the manufacturer, while the inventor makes a fair amount of money on the idea alone.
Licensing is always an option, even if you are the one manufacturing the product. You can always sell a license to a competitor and make additional revenue on the idea, or you can limit licensing to markets that you do not serve. This allows for an added revenue stream without a lot of effort.
No matter what the idea is, all successful innovations follow these basic milestones.