As an Engineer, I agree with Profitscout. It is obvious from their reporting that they have followed the essential sequences: Starting with a dream( concept) to fulfill a certain need, they then conceived a preliminary working model, revising as needed over time, and, before starting a production prototype, had to consider all details such as materials of construction, necessary strength requirements, size and configuration requirements, costs,safety aspects, etc., etc., until they finally come up with a safe, effective working model that achieves the original dream within cost limitations( or modify, if not).
What the end product looks like may or may not appear unique, as the end RESULT is what really counts, and its value vs. other means of achieving the goals originally needed.
