Patent Information and Databases


Data   News   Search   Classification


IMPORTANT: For a useful catalog of innovation data, go to the Innovation information initiative website, which supersedes some of the information below and adds much more.


NBER patent data


Documentation from the original NBER Patent Data Project


2006 edition of data  - GO HERE FIRST FOR NBER PATENT DATA – this is the most recent version of the NBER data, but it is somewhat out of date. You are strongly advised to investigate the patent data available on the Innovation Information Initiative website instead.


Some additional files for the 2006 edition on my website


1999 NBER patent data files (Hall, Jaffe, and Trajtenberg 2002 version) 


Other patent data:


Chilean IP firm data from WIPO-INAPI project, from Maria-Jose Abud, Carsten Fink, Bronwyn H. Hall, and Christian Helmers (2013).


USPTO bulk downloads - bulk downloads available for a large range of USPTO data, older verison (2015) at Google bulk downloads.


PATSTAT – collection of patent documents worldwide, curated by EPO and OECD, highly recommended.


Match of US Patents to CRSP 1926-2010, Leonid Kogan, Dimitris Papanikolaou, Amit Seru, and Noah Stoffman


Match of EPO (European Patent Office) patent data to European firm data (including R&D data) by Grid Thoma

This website also contains a match to US Amadeus data, and some trademark information.

Japanese Patent Office Data from IIP - The new IIP Patent database, produced under the supervision of Akira Goto and Kazuyuki Motohashi. Data on 9 million applications and 2.7 million registrations (grants) from the early 20th century to January 2004. Includes citations and owner information.

Match of Chinese patent data to firm names by Zilin He, Tony Tong, and Yuchen Zhang – this project is a match of SIPO patents to firms in China’s ASIE 1998-2009 (“the census data”). Utility, invention, and design patents are included in separate files. It covers the years 1998-2009.


Harvard Business School Patent Dataverse

Data on inventors from US patents, 1975-2010 with name disambiguation, by Ronald Lai, Alexander D'Amour, and Lee Fleming.


News and information sites:


United States Patent and Trademark Office Home Page

European Patent Office Home Page

Managing IP Newsletter

Written Description Blog for research paper summaries

Patent blog of Dennis Crouch for US patent news

IPKat blog and newsletters  for international patent news


Patent search and data sites:


Google patent search

Google Patent Search covers the entire collection of patents made available by the USPTO—from patents issued in the 1790s through those issued in the middle of 2006. They also include international offices. BHH note: some patents appear to be missing (e.g., 3930271, issued Jan 6 1976, the first one in the computerized data base).


USPTO Patent Database search

Full text search for patents from 1976. Patents from 1790 through 1975 are searchable only by Issue Date, Patent Number, and Current US Classification.



The European Patent Office’s search site, which includes applications and grants from the EPO, WIPO, and worldwide.


Free online patent search

US Patents issued from 1976; US Applications from 2001; European Patents from 2000


OECD IP Statistics and Patent Data


Patent classification systems:


USPTO patent classification definitions

International patent classifications,   deep link to table


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Last updated 27 April 2021 by Bronwyn H. Hall