Patent analysis is one of the main research areas of ECOOM. The analysis of patent information is considered to be one of the best established, readily available and historically reliable methods for quantifying the output of science and technology systems. No other innovation indicator can be traced back over relatively long periods, and at the same time be disaggregated into low levels of analysis, relating to individual economic and technological units. Patent analysis also allows for accurate and precise mappings of the timing of innovation.