As both an engineer and an MBA I can tell you the route to "build a better mousetrap and the world will come to you" does not hold any water. You must really know who you are going after. Make sure you develop a business plan and decide what market you want to target. when you know who you are selling your product to, you can come up with a better approach to reaching them. That's about all the help I can give you without knowing the nature of what you are selling and what research you have done/intend to do.
http://www.engineer-a-business.com