Taking your idea all the way yourself:
This can be a great route for those inventors who typically have more of a background with producing products and may even have an “in” already with potential buyers or manufacturers. Development for this route generally follows the design process listed below.
Developing your product invention yourself also makes sense if you want to make sure you have all your ducks in a row before talking to buyers so that when you do shake on the deal everything is all ready to go an your not hit with delays. It also means you have more control of the look, function and product direction than just handing off the idea and finding out later its not what you were hoping for.
Going through the design development process yourself means that you have your idea fleshed out. You may have a working or visual prototypes ready. You have a tech pack (Can show construction, colors, logo placement, dimensions, manufacturing notes, etc) showing how your idea is put together for the factory to work from. You have your PMI packet (product manufacturing information) ready to send to a factory for a quote for production or you already have the quote.