---
title: "P028 License"
method: GET
path: "/advanced-patent-data/license-data"
tags: ["Patent Legal Data"]
---

# P028 License

`GET /advanced-patent-data/license-data`

## Request

- Base URL: `https://connect.patsnap.com`
- URL: `https://connect.patsnap.com/advanced-patent-data/license-data`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/patsnap/apis/patsnap-open-platform-api/docs/advanced-patent-data/license-data/get.ts> (a function with typed inputs; its response is checked against the schema)

Receive license data by patent_id or patent_number. This includes license contract number, licensor, licensee, license type, and license effective date.

## Query parameters

- `patent_id` string: patent_id
- `patent_number` string: patent_number

## Response `200`

Successful p028 license response.

- P028AdvancedPatentDataLicenseDataResponse
  - `data` P028AdvancedPatentDataLicenseDataPatentLicenseDataResponse[]: response data
    - `pn` string: patent number
    - `patent_id` string: patent id
    - `patent_license_data` P028AdvancedPatentDataLicenseDataPatentLicenseData[]: patent license data
      - `country` string: Authority code
      - `licensees` P028AdvancedPatentDataLicenseDataPersonBaseDoc[]: licensees
        - `lang` string: Language
        - `name` string: name
        - `sequence` integer: sequence
      - `licensors` P028AdvancedPatentDataLicenseDataPersonBaseDoc[]: licensors
        - `lang` string: Language
        - `name` string: name
        - `sequence` integer: sequence
      - `license_type` unknown[]: License type
        - unknown
      - `effective_date` integer: License effective date
      - `contract_number` string: License contract number, only some jurisdictions have this field, such as CN
  - `status` boolean, required: Status
  - `error_msg` string: Error Message
  - `error_code` integer, required: Error Code

## Other responses

- `401`: Unauthorized.
- `403`: Forbidden.
- `404`: Not Found.

---

[API](https://skmtc.dev/patsnap/apis/patsnap-open-platform-api.md) - [All operations](https://skmtc.dev/patsnap/apis/patsnap-open-platform-api/llms.txt) - [OpenAPI document](https://skmtc.dev/patsnap/apis/patsnap-open-platform-api/revisions/c2264a0de595?raw)