---
title: "P016 Patent Citation NPL"
method: GET
path: "/advanced-patent-data/forward-citation/npl"
tags: ["Patent Basic Data"]
---

# P016 Patent Citation NPL

`GET /advanced-patent-data/forward-citation/npl`

## Request

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

Query a specific patent’s citation during application process via patent_id or patent_number, including: citing patent country/region/organization code, cited patent document number/code, cited patent type (applicant/examiner citation), examiner-cited document category (X, Y, A, etc.), cited non-patent literature serial number, and its DOI, title, author, publication.

## Query parameters

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

## Response `200`

Successful p016 patent citation npl response.

- P016ForwardCitationNplResponse
  - `data` P016ForwardCitationNplPatentForwardCitationNplResponse[]: response data
    - `pn` string: patent number
    - `patent_id` string: patent id
    - `patsnap_reference_cited` P016ForwardCitationNplReferenceCitedIncremAdvanced
      - `cited_others` P016ForwardCitationNplCitedOtherAdvanced[]: citation reference
        - `pn` string: patent number
        - `doi` string: Digital Object Identifier (DOI)
        - `ino` string: Number of questions
        - `vol` string: Volume Number
        - `isbn` string: International Standard Book Number
        - `issn` string: International Standard Serial Number
        - `page` string: page
        - `phase` string: Short Description
        - `refno` string: Reference Number
        - `title` string: Title of the book
        - `author` P016ForwardCitationNplAuthorAdvanced[]: Citation reference author
          - `lang` string: Language
          - `name` string: Author Name
          - `name_id` integer: Author Name Id
        - `content` string: Content of the citation
        - `imprint` P016ForwardCitationNplImprint
          - `name` string: name
          - `address` string: Address Information
          - `content` string: Content
          - `pubdate` integer: Publish Date
        - `journal` string: Journal of cited literature
        - `category` unknown[]: Reference Category
          - unknown
        - `ref_type` string: Types of cited literature
        - `cite_date` integer: Citation Date
        - `cite_type` unknown[]: Reference Types
          - unknown
        - `page_last` string: Page range, PPL - last page (in pdf format)
        - `page_first` string: Page range, PPF - first page
        - `rel_passage` P016ForwardCitationNplRelPassage
          - `passage` string: Quote the document and, where appropriate, indicate the relevant paragraphs
          - `cite_type` unknown[]: Cite Type
            - unknown
          - `rel_claims` P016ForwardCitationNplRelClaim[]: Address Information
            - `claims` string: The relevant claims of the patent with patent_id
            - `category` string: The category of citation numbers
        - `avail_access` string: website address
        - `serial_title` string: Represents the chapter title of a book
      - `cited_patents` P016ForwardCitationNplCitedPatents[]: citation patents
        - `pn` string: patent number
        - `num` string: patents sequence
        - `apdt` integer: Application Date
        - `apno` string: application number
        - `kind` string: kind code
        - `pbdt` integer: Publication Date
        - `title` string: Title
        - `country` string: citation authority
        - `category` unknown[]: Citation category of examiners
          - unknown
        - `inventor` string: Inventor
        - `cite_type` unknown[]: Citation type:<p>APP - applicant，EXA - examiner，OPP - opposition，TPO - third party observation，OTHER - others</p>
          - unknown
        - `doc_number` string: doc number
        - `current_assignee` string: Current Assignee
        - `original_assignee` string: Original Assignee (Applicant)
  - `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)