Uploaded December 2025 | Updated September 2026, 1 week ago

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This video explains how you can submit evidence-based observations on published European patent applications and contribute to the robust, high-quality patent system of the EPO.

For more information, visit the third-party observations page on our website: epo.org/en/searching-for-patents/legal/observations

This video was generated by AI. For further information refer to the EPO AI Policy published on epo.org.