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International nanotechnology development in 2003: Country,institution, and technology field analysis based on USPTO patent database
Authors:Zan Huang  Hsinchun Chen  Zhi-kai Chen  Mihail C Roco
Institution:(1) Artificial Intelligence Lab, Department of Management Information Systems, Eller College of Management, The University of Arizona, AZ, USA;(2) National Science Foundation, 4201 Wilson Blvd., VA, USA
Abstract:Nanoscale science and engineering (NSE) have seen rapid growth and expansion in new areas in recent years. This paper provides an international patent analysis using the U.S. Patent and Trademark Office (USPTO) data searched by keywords of the entire text: title, abstract, claims, and specifications. A fraction of these patents fully satisfy the National Nanotechnology Initiative definition of nanotechnology (which requires exploiting specific phenomena and direct manipulation at the nanoscale), while others only make use of NSE tools and methods of investigation. In previous work we proposed an integrated patent analysis and visualization framework of patent content mapping for the NSE field and of knowledge flow pattern identification until 2002. In this paper, the results are updated for 2003, and the new trends are presented.
Keywords:patent analysis  knowledge discovery  information visualization  self-organizing map  citation networks  nanoscale science and engineering (NSE)  nanotechnology  technological innovation  international interactions
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