No matter how well a proof of principle experiment functions, it is at least ten steps away from being a commercial product. New product development stages are called product development and they close the gap between the engineer who conceives the product and marketing who must sell it at a price the market will bear.
We have been using this approach to develop products for virtually all industry categories. If you want to know about product development, then you can browse the web.
A good design cannot be applied as an afterthought like a coat of paint for cosmetics. It has to be an integral part of the development. That is why is define each product by analyzing its technological requirement before generating concepts or models, in other words, "you have to begin with the end in mind".
While the design is still in this early stage, the development team has to check out the competition and your patent position so you won't have any nasty surprises.
The essence of good product design is simplicity. As the engineers and designers prepare concept renderings, the preliminary layouts and logic diagrams, conceptual models, as well as theoretical calculations their first concern is the consumer. How can the product be made easy to operate, maintain and repair and retire?
The objective is to build a new product that is safe and reliable. But, that is just the beginning. You have to design a product that can be packed, survive shipping, and can be stored without difficulty or damage. We have to start with the natural form of the product and its working parts.