Abstract
AbstractPatent trend analysis, or the bibliometric analysis of patenting activity over time, has been used to evaluate where technologies stand on their maturity curves and to identify players in a technical field. The tool has also been applied to assess specific companies' technology portfolios and technical strategies. The analysis is usually based on a direct count of the number of patents published annually. The author proposes, and shows with examples, that factors other than technology maturity and technology strategies can affect these trends and that extraneous factors have to be taken into account before valid conclusions can be drawn. © 1996 John Wiley & Sons, Inc.
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