Contributions

  • Trajtenberg, Manuel. - Contributor
  • National Bureau of Economic Research. - Contributor

Publication

2004 - National Bureau of Economic Research, Cambridge, Mass, Massachusetts

Language

English

Word Count

6,750 words, Guess

Page Count

27 pages

Identifiers

Alternate Titles

  • Uncovering General Purpose Technologies with patent data.

Description

"This paper asks the question: Can we see evidence of General Purpose Technologies in patent data? Using data on three million US patents granted between 1967 and 1999, and their citations received between 1975 and 2002, we construct a number of measures of GPTs, including generality, number of citations, and patent class growth, for patents themselves and for the patents that cite the patents. A selection of the top twenty patents in the tails of the distribution of several of these measures yields a set of mostly ICT technologies, of which the most important are those underlying transactions on the internet and object-oriented software. We conclude with a brief discussion of the problems we encountered in developing our measures and suggestions for future work in this area"--National Bureau of Economic Research web site.

Subjects

Topics

PatentsHistoryPatents -- United StatesTechnological innovationsTechnological innovations -- United States -- History -- 20th century

Places

Times

Links

Other Editions

  • Uncovering GPTS with patent dataNational Bureau of Economic Research2004-01-01

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