EPO published patent application EP4439287A1 for a prompt method and apparatus based on document sharing, filed by Beijing Zitiao Network Technology Co., Ltd. The patent covers methods and systems for collaborative document sharing with international classifications in business methods (G06Q) and document processing (G06F). The designated states cover all 27 EU member states plus Switzerland, Norway, and other European Patent Convention states.

Technology companies and software developers operating in the EU should review this patent publication to assess potential freedom-to-operate considerations if their document sharing or collaborative prompt systems fall within similar technical scope. Patent publication does not create immediate compliance obligations but establishes prior art date for subsequent applications.