Abstract
ABSTRACT A proliferation of studies has been carried out on patent value indexes encompassing the most different viewpoints and considering different scale. However, the existing literature is fragmented and not properly integrated, demanding for an adequate organization in order to clarify the matter in a systematic manner. This article summarizes the results of a systematic review of the literature on patent value indexes, offering an organized synthesis according to the intrinsic and extrinsic properties of patents, which are the two extremely informatory components in every process of value recognition. This study improves on state patent value measurement by providing a thorough array of the indexes proposed in literature over a 20-year period and by empirically grouping them into core categories. Based on this classification, the authors offer a well-grounded path to achieve the intrinsic and extrinsic value of patents. The review concludes by suggesting promising directions for future investigation.
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