Zhihuiya Patent Legal Status

This skill guides you on how to query patent legal status information via the Zhihuiya (PatSnap) platform, helping users quickly determine the current legal standing and event history of one or more patents.

Core Concepts

The Zhihuiya Patent Legal Status tool returns three layers of legal information for each patent:

1. Simple Legal Status -- A high-level summary of the patent's current standing (e.g., Active, Inactive, Pending, Undetermined, PCT designated period, PCT designated expiration).
2. Legal Status -- A detailed status describing the patent's lifecycle stage (e.g., Published, Examining, Granted, Abandoned, Withdrawn, Rejected, Expired, Revoked, Ceased, Restoration, etc.).
3. Legal Events -- Specific legal actions that have occurred on the patent (e.g., Transfer, License, Pledge, Opposition, Litigation, Re-examination, Customs, Preservation, Invalid-procedure, Oral-procedure, Declassification, Double application, Trust).

Patent identification: Patents can be looked up by either patent ID or publication (announcement) number. When both are provided, patent ID takes priority. Multiple values can be submitted in a single request (comma-separated, up to 100).

Parameter Guide