Patent data provide a rich set of information which can be used for comparative studies and trend analysis. The paper … analysis. This paper discusses different indicators of technological specialisation, concentration, and patent quality are … analysed, including Revealed Technological Advantage (RTA) index, patent share, C20 concentration index, and Gini concentration …

Patent documents are one of the most comprehensive data sources on technology development. As such, they provide a … unique source of information to analyze and monitor technological performance. Patent indicators are now used by companies …% of the patent volume of both USPTO and EPO are assigned to discrete categories) and accuracy (99% of the assigned codes …