Patent Assignment Dataset

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 2020 update to the Patent Assignment Dataset contains detailed information on 8.97 million patent assignments and other transactions recorded at the USPTO since 1970 and involving roughly 15.1 million patents and patent applications. It is derived from the recording of patent transfers by parties with the USPTO.

A document describing these data is available here: “The USPTO Patent Assignment Dataset: Descriptions and Analysis.” Users are requested to cite this documentation when using these data. It is also available as: Marco, Alan C., Graham, Stuart J.H., Myers, Amanda F., D'Agostino, Paul A and Apple, Kirsten, The USPTO Patent Assignment Dataset: Descriptions and Analysis (July 27, 2015). Available at SSRN: http://ssrn.com/abstract=2636461.

For questions, please email EconomicsData@uspto.gov

Data Files

USPTO Patent Assignment Dataset Schema

Download full set of 2020 data files [.dta format (1.31 GB)] [.csv format (1.48 GB)]

Download individual data files:

File Name2014*2019**2020**
assignmentDTA
138 MB
CSV
231 MB
DTA
177 MB
CSV
302 MB
DTA
185 MB
CSV
317 MB
assignorDTA
128 MB
CSV
162 MB
DTA
175 MB
CSV
227 MB
DTA
184 MB
CSV
240 MB
assigneeDTA
131 MB
CSV
166 MB
DTA
197 MB
CSV
225 MB
DTA
208 MB
CSV
237 MB
documentidDTA
289 MB
CSV
367 MB
DTA
425 MB
CSV
551 MB
DTA
436 MB
CSV
559 MB
assignment_conveyanceDTA
13.4 MB
CSV
17 MB
DTA
17.1 MB
CSV
23.1 MB
DTA
17.9 MB
CSV
24.3 MB
documentid_adminDTA
104 MB
CSV
89.8 MB
DTA
296 MB
CSV
129 MB
DTA
307 MB
CSV
133 MB

Direct Download here: 2014*, 2015**, 2016*, 2017**, 2019**, 2020**.

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)]

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 and 2020 DTA files have been created using the Stata-14 format. Long string values are stored using the new strL variable type.