The USPTO allows parties to record assignments of patents and patent applications to, as much as possible, maintain a complete history of claimed interests in a patent. The USPTO also permits recording of other documents that affect title (such as certificates of name change and mergers of businesses) or are relevant to patent ownership (such as licensing agreements, security interests, mortgages, and liens). The latest update contains detailed information on 10.5 million patent assignments and other transactions recorded at the USPTO since 1970 and involving roughly 18.8 million patents and patent applications. It is derived from the recording of patent transfers by parties with the USPTO.
A working paper describing these data is available at SSRN and as a published version in the Journal of Economics and Management Strategy. Users are requested to cite this documentation when using these data: Graham, SJH, Marco, AC, Myers, AF. Patent transactions in the marketplace: Lessons from the USPTO Patent Assignment Dataset. J Econ Manage Strat. 2018; 27: 343– 371. https://doi.org/10.1111/jems.12262
For questions, please email EconomicsData@uspto.gov
Data Files
USPTO Patent Assignment Dataset Schema
Download full set of 2023 data files [.dta format (1.56 GB)] [.csv format (1.78 GB)]
Download individual data files:
| File Name | 2014* | 2022** | 2023** | |||
|---|---|---|---|---|---|---|
| assignment | DTA 138 MB | CSV 231 MB | DTA 204 MB | CSV 350 MB | DTA 212 MB | CSV 365 MB |
| assignor | DTA 128 MB | CSV 162 MB | DTA 204 MB | CSV 272 MB | DTA 214 MB | CSV 287 MB |
| assignee | DTA 131 MB | CSV 166 MB | DTA 202 MB | CSV 266 MB | DTA 211 MB | CSV 279 MB |
| documentid | DTA 289 MB | CSV 367 MB | DTA 532 MB | CSV 663 MB | DTA 559 MB | CSV 700 MB |
| assignment_conveyance | DTA 13.4 MB | CSV 17 MB | DTA 20.3 MB | CSV 27.2 MB | DTA 21.3 MB | CSV 28.6 MB |
| documentid_admin | DTA 104 MB | CSV 89.8 MB | DTA 352 MB | CSV 155 MB | DTA 376 MB | CSV 163 MB |
Direct Download here: 2014*, 2015**, 2016*, 2017**, 2019**, 2020**, 2021**, 2022**, 2023**.
Download full set of 2014 data files [.dta format (773 MB)] [.csv format (1.04 GB)]
Download full set of 2015 data files [.dta format (936 MB)] [.csv format (1.09 GB)]
Download full set of 2016 data files [.dta format (1.02 GB)] [.csv format (1.2 GB)]
Download full set of 2017 data files [.dta format (1.09 GB)] [.csv format (1.28 GB)]
Download full set of 2019 data files [.dta format (1.26 GB)] [.csv format (1.42 GB)]
Download full set of 2020 data files [.dta format (1.31 GB)] [.csv format (1.48 GB)]
Download full set of 2021 data files [.dta format (1.39 GB)] [.csv format (1.58 GB)]
Download full set of 2022 data files [.dta format (1.5 GB)] [.csv format (1.72 GB)]
These data comprise an aggregation of raw XML data found here.
* Note: the 2014 and 2016 DTA files have been created using the Stata-13 format. Long string values are stored using the new strL variable type.
** Note: the 2015, 2017, 2019, 2020, 2021, 2022 and 2023 DTA files have been created using the Stata-14 format. Long string values are stored using the new strL variable type.