> Great inventors revolutionize a product Then those "great inventors" are simply designers, are they not? The revolutionary improvements you list are exactly

> Great inventors revolutionize a product Then those "great inventors" are simply designers, are they not? The revolutionary improvements you list are exactly that -- improvements on an existing product. Even Edison was not the first to create electric light. These guys from the article are taking existing products and making improvements that drastically increase functionality / sales of those products. For some context on one of your comments: > Tesla revolutionized the concept of a car. Third sentence on the Wikipedia article for electric car says, "The first electric cars appeared in the 1880s." I think these guys are doing great work, and whether you call them inventors or designers doesn't matter. They are performing a vital function that not only increases profits for their clients but also improves the user experience for the consumer. [1] http://en.wikipedia.org/wiki/Electric_car http://en.wikipedia.org/wiki/Electric_car