Abstract
In general, the structural and behavioral patterns of technological innovation are idiosyncratic across industrial sectors and dynamic over time. Yet, despite voluminous amounts of previous research, patterns of innovation are hard to standardize or theorize. The objectives of this article are two-fold. One is to investigate distinctive and changing patterns of technological innovation across industries and observe dynamic trends over time. The other is to identify patterns of relationships among industries and examine the roles of respective industries. To this end, the U.S. Patent and Trademark Office (PTO) patent database was used and patent citation analysis applied. The idiosyncratic differences among industrial sectors are highlighted, especially between conventional manufacturing sectors and science-based sectors. We also found changing trends in technological knowledge flows across industries.
Published Version
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