---
title: "P072 Classification number search assistant interface"
method: GET
path: "/search/patent/classification/helper-search"
tags: ["Patent Data Search"]
---

# P072 Classification number search assistant interface

`GET /search/patent/classification/helper-search`

## Request

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

Based on the retrieval content and the type of classification number assistant, obtain the classification level information related to the retrieval content

## Query parameters

- `keyword` string, required: Classified retrieval content
- `type` string, required: The classification number assistant category includes ipc, cpc, and loc

## Response `200`

Successful p072 classification number search assistant interface response.

- P072ClassificationHelperSearchResponse
  - `data` P072ClassificationHelperSearchClassificationSearchHelperResponse
    - `h_words` unknown[]: Key word hit
      - unknown
    - `has_children` string: has children nodes
    - `query_results` P072ClassificationHelperSearchQueryResults[]: search results
      - `cls_tree` P072ClassificationHelperSearchClassificationTree
        - `id` string: Classification code
        - `children` unknown[]: sub Classification number hierarchy tree
          - unknown
        - `lang_desc_map` P072ClassificationHelperSearchLangDescMap
          - `cn` string: Chinese description
          - `en` string: English description
  - `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)