Patent and Patent Application Oath Signature...
URL: https://api.uspto.gov/api/v1/datasets/products/ptapoath
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.
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Additional Information
| Field | Value |
|---|---|
| Data last updated | July 14, 2025 |
| Metadata last updated | July 14, 2025 |
| Created | July 14, 2025 |
| Format | application/json |
| License | No License Provided |
| Accesscontrolrights | For access control rights, refer to the USPTO Terms of Use: https://www.uspto.gov/terms-use-uspto-websites |
| Datastore active | False |
| Docsurl | https://data.uspto.gov/bulkdata/datasets/ptapoath |
| Endpointdesc | To access this dataset, use the provided endpoint URL. It returns a JSON object containing download links for bulk data files (e.g., .zip). Files must be downloaded using redirect-friendly methods (e.g., 'curl -L' or Python's 'requests.get(..., allow_redirects=True))'. For full details on how to construct download URLs, handle redirects, and programmatically access and retrieve files, refer to the Bulk Data Directory section of the USPTO FAQ: https://data.uspto.gov/support/faq |
| Endpointname | Bulk Data API |
| Has views | False |
| Id | a4c302ea-ac55-41c9-a601-efbc3dc8ad54 |
| Issuedate | 2022-09-30 |
| Lastupdatedate | 2025-07-14 |
| Mimetype | application/json |
| Package id | 5c3411c5-32d2-41e6-b366-864ccf7cc6bd |
| Position | 0 |
| Resdatadict | Access data dictionary via API endpoint: https://api.uspto.gov/api/v1/datasets/products/ptapoath |
| Ressize | 43.5 GB |
| State | active |
| Status | deprecated |
| Urltype | api-endpoint |