The source of legal status in this container is Inpadoc data from the European Patent Office, covering a variety of entries, procedural steps, and post-grant events from over 40 patenting authorities. Content and coverage varies, and all legal status codes are country-specific.

A list of worldwide legal status codes, contents, and coverage can be found on the EPO’s website at For several authorities, more detailed explanation of the codes can be found at


  <legal-event country="AT" impact="-" code="MM01" date="20190415" class="H" mxw-id="LS262024855">
      <event-title>LAPSE BECAUSE OF NOT PAYING ANNUAL FEES</event-title>
          <event-attribute-label>Effective Date </event-attribute-label>



countryCountry is represented by a standard 2-character code based on WIPO ST.3.
impact+ , -, or neutral
code1-4 character code. Legal status codes are country-specific. See the links above for more information.
dateDate of public notification (YYYYMMDD), e.g., gazette date

Letter designation that groups event codes into categories which are of particular importance to the prosecution of a patent and share a common theme. Class is available in the frontfile beginning in March 2020. See ST.27 for more information.

Some examples include:

  • C=Application revival, i.e., events related to the revival, reinstatement or restoration of an application after it has been discontinued
  • P=Document modification, i.e., events related to modifications of an application, IP right document or other document, which occur outside the context of a pre-grant review or IP right review
event-titleDescription of the legal status code
event-attributesAttributes of a legal event such as dates, parties, free format text etc.

Further Reading

For information about the SOLR search fields associated with this container, see Legal Status Events.