What question did this study set out to answer?

To examine whether citation frequency in subsequent patent filings reflects the private economic value of patented inventions.

August 1, 1999The Review of Economics and Statistics

Citation Frequency and the Value of Patented Inventions

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To examine whether citation frequency in subsequent patent filings reflects the private economic value of patented inventions.
Surveyed private economic value estimates for N=964 inventions developed in the United States and Germany with German patent renewal fees paid through full-term expiration in 1995.
Searched subsequent U.S. and German patents to calculate citation counts received by each invention.
Patents renewed to full-term expiration received significantly higher citation counts than patents allowed to lapse prior to full term.
Inventions with higher estimated private economic values were cited significantly more frequently in subsequent patent filings.

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Implication

Survey-based analysis reveals positive correlation between patent citation frequency and economic value in patented inventions, suggesting citations effectively signal technological importance.

Cite This Study

Harhoff et al. (1999) studied this question.

synapsesocial.com/papers/6a1d251b102421609404ec09 https://doi.org/10.1162/003465399558265

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Implication

Survey-based analysis reveals positive correlation between patent citation frequency and economic value in patented inventions, suggesting citations effectively signal technological importance.

Citation Frequency and the Value of Patented Inventions

Key Points

Discussion

Implication

Cite This Study

Citation Frequency and the Value of Patented Inventions

Key Points

Discussion

Implication

Cite This Study

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