---
title: "Current status by pre-grant publication number"
method: GET
path: "/v1/publications/{publication_number}"
tags: ["patent status"]
---

# Current status by pre-grant publication number

`GET /v1/publications/{publication_number}`

## Request

- Base URL: `https://api.patentdata.ai`
- URL: `https://api.patentdata.ai/v1/publications/{publication_number}`
- Auth: one of:
  - API key in header `X-API-KEY`
  - HTTP bearer

Answers: what is the state of the application behind this published application — same object as /v1/applications/{n}, looked up by publication number as printed (US20230080435A1) or bare (2023/0080435).

## Path parameters

- `publication_number` string, required: Pre-grant publication number, e.g. US20230080435A1 or 2023/0080435.

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/patentdata/apis/patent-status-api.md) · [All operations](https://skmtc.dev/patentdata/apis/patent-status-api/llms.txt) · [OpenAPI document](https://skmtc.dev/patentdata/apis/patent-status-api/revisions/320133a82b42?raw)