​​US Citations Data
​​This page includes US citations data from Google Patents (1926-1975). Note that citations were not officially included on patent documents until February 1947 (Nicholas, 2010)*.
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Dropbox file icon
us_citations_1926_1975.csv
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​​File contains the following columns
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​​Variable
​​Description
​​patnum
​​Patent number
​​patnum_fdate
​​File date of patent
​​patnum_idate
​​Issue (grant) date of patent
​​patcite
​​Patent citation number
​​patcite_fdate
​​File date of patent citation
​​patcite_idate
​​Issue (grant) date of patent citation
​​Thanks to Elif Guler for scraping this data from Google Patents.
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​​*Nicholas, Tom, 2010. The Role of Independent Invention in U.S. Technological Development, 1880-1930. The Journal of Economic History, 70(1), pp. 57-82.
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​​USPTO patent data
​​Abstract, title data can be found here.
​​Assignee data can be found here.
​​Citations data can be found here.
​​Claims data can be found here.
​​Classifications data can be found here.
​​Examiner data can be found here.
​​General info data can be found here.
​​Inventor data can be found here.
​​Maintenance fee data can be found here.
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​​Patent-CRSP permco match data
​​Patent numbers matched to permco numbers data can be found here.
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