2. Search by the European Patent Office: The European Patent Office usually searches the existing technical documents related to the patentability of the application and informs the applicant of the search results.
3. Publication of patent application: The European patent will publish the patent application within 65,438+08 months from the date of filing (the priority date, if any). Two years after filing the European patent application, the renewal fee shall be paid to the European Patent Office every year until it is authorized. 4. Request for substantive examination and substantive examination: The applicant shall make a request for substantive examination at the same time of filing the application or within 6 months from the date of publication of the retrieval report of the European Patent Office. At the same time as the substantive examination request is made, it is necessary to designate a specific member state from the European member States and pay the examination fee and designation fee. 5. European patent authorization: After examination and approval, the European Patent Office will issue a notice of authorization. The applicant chooses to agree to the authorized text and allow this application to enter the authorization procedure, or modify the text or claim according to his own wishes, and pay the authorization fee and submit the translation of the claim in the other two languages. 6. Entry into force in European member States: Within three months after authorization, the applicant needs to choose the country that wants to enter into force among the countries that have paid the specified fee. Some countries need to translate all the contents of European patents into their own languages and submit them to the effective country, so that European patents can take effect in that country.