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README.md
first_and_subsequent_filings.sql
imputation_of_PATSTAT_country_codes.sql
imputation_of_location_information.sql

README.md

Imputation-of-missing-location-information-for-worldwide-patent-data

We provide three pieces of SQL code:

  1. imputation_of_location_information.sql: Algorithm to impute missing geographic information of first patent filings by inventors from subsequent filings for use with geocoded patent address information from multiple patent offices together with PATSTAT.

  2. imputation_of_PATSTAT_country_codes.sql: Algorithm to impute missing country codes of first patent filings by inventors from subsequent filings. It updates the code provided by de Rassenfosse, G., Dernis, H., Guellec, D., Picci, L., van Pottelsberghe de la Potterie, B., 2013: The worldwide count of priority patents: A new indicator of inventive activity. Research Policy. It can be directly run with PATSTAT Spring 2019.

  3. first_and_subsequent_filings.sql: Builds table in order to assign any patent number to its "first patent filing". It can be run with PATSTAT Spring 2019.

A detailed data description can be found in de Rassenfosse, Kozak, Seliger 2019: Geocoding of worldwide patent data, available at https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3425764 Please make sure to cite the paper in your work.

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