Patent and Patent Application Oath Signature Dataset for Academia and Researchers

Contains a research dataset of images of signatures extracted from patent inventor oath documents used for validation of micro entity certifications ranging from SEP 1998 to SEP 2022. It includes 883,811 documents and oath document signature images, is 40.5 GB of total size, and is broken into 8 zip files for the Patent Application Series Codes 12 to 17, 29, and 35. Each of these zip files contain folders for each application number in a given series. The application folders contain the oath document identifier that includes the image(s) of the signature(s) as PNG, and JSON file that contains the application number, the inventor name(s), and confidence level of the signature extraction algorithm.

Data and Resources

Additional Info

Field Value
Last Updated July 14, 2025, 04:12 (UTC)
Created July 14, 2025, 04:12 (UTC)
accessRights Follow these instructions to access the data programmatically via the endpoint link (included in metadata) and create your own API key: https://data.uspto.gov/apis/getting-started
columnDataDict Access column data dictionary at: https://data.uspto.gov/apis/bulk-data/search
creationMethod Learn more about dataset's creation method at: https://data.uspto.gov/bulkdata/datasets/ptapoath
creatorEmail
creatorName
dataProvenance [{'date': '2022-09-30', 'name': 'Creation and publication of dataset'}, {'date': '2022-09-30', 'name': 'Date of collection of last data point'}, {'date': '2025-07-14', 'name': 'Dataset updated'}]
dataType JSON
datasetPageUrl https://data.uspto.gov/bulkdata/datasets/ptapoath
datasetVersion v2.0
docsURL https://data.uspto.gov/bulkdata/datasets/ptapoath
issueDate 2022-09-30
lang English
lastUpdateDate 2025-07-14
pocEmail data@uspto.gov
pocName USPTO Office of Data Management
pocWebsite https://www.uspto.gov/about-us/organizational-offices/office-commissioner-patents/data-management
publisherEmail
publisherName
purpose Learn more about dataset's purpose at: https://data.uspto.gov/bulkdata/datasets/ptapoath
status submitted
theme ['patent']
timezone EST
updateFreq Yearly
uploadType dataset
usageInfo For usage information, refer to the USPTO Terms of Use: https://www.uspto.gov/terms-use-uspto-websites
versionNotes For version details, refer to the USPTO release notes: https://data.uspto.gov/support/release/summary