generated: '2026-07-20'
method: searched
source:
- https://open.patsnap.com/devportal/api-reference
- openapi/patsnap-openapi-original.json
format: numeric-code
envelope:
  note: >-
    Errors are returned as JSON with a platform/business status code plus a message.
    OpenAPI response bodies for auth/not-found cases carry a plain description string
    (not RFC 9457 application/problem+json).
http_responses:
  derived_from: openapi/patsnap-openapi-original.json
  observed:
  - status: 400
    meaning: Bad Request - invalid or missing parameters
  - status: 401
    meaning: Unauthorized - missing or invalid API key / bearer token
  - status: 403
    meaning: Forbidden - key lacks access to the requested resource or endpoint
  - status: 404
    meaning: Not Found - resource or patent record does not exist
  - status: 413
    meaning: Payload Too Large
  - status: 500
    meaning: Internal Server Error
  - status: 502
    meaning: Bad Gateway
  - status: 504
    meaning: Gateway Timeout
error_code_ranges:
- range: 68300004-68300010
  class: business
  meaning: >-
    Business-level errors - invalid parameters, API call failures, and access errors
    specific to a data operation.
- range: 67200000-67200101
  class: platform
  meaning: >-
    Platform-level errors - rate/QPS limit exceeded, authentication failures, account
    problems (quota/daily limit), and server status conditions.
notes: >-
  Exact per-code titles are enumerated in the live API reference error tables; ranges and
  classes captured here from the reference. Not a payments API - no decline-code surface.