Solo travel 2015 for Even if useful and novel, an invention may not receive a patent for failing to pass the non-obviousness test. This test asks whether or not the invention demonstrates a sufficient improvement on the prior art to deserve the award of a patent. The implicit assumption is that on the basis of the prior art in a specific area of technology, certain minimal improvements are obvious to any person skilled in the art, and consequently they are denied patent protection. Thus, the non-obviousness requirement defines the minimum inventive step required for the patentability of an invention. The legal characteristics of patents described above are of considerable significance for the economic analysis of patents. Features like duration and scope of protection, or the inventive step implicit in the non-obviousness requirement, have the potential to play an important role in defining the economic effects of the legal monopoly over ideas created by patents. Specifically, they are likely to affect the performance of the markets for innovative products, as well as the extent of competition among firms in the pursuit of technological innovations. Solo travel 2015 2016.