What certification materials does the company need to submit to the notary office for notarization of patent rights? When will it end?

To apply for notarization of patent documents, the parties concerned shall apply to the notary office of their domicile, fill in the notarization application form, and submit the following supporting materials: (1) the qualification certificate of the company as a legal person and the qualification and identity certificate of its legal representative; (2) Relevant patent certificates; (3) Drafting power of attorney, declaration, assignment and corresponding contract, etc. ; (4) Where a party transfers the right to apply for a patent or a patent right to a foreign country, or applies for a patent for an invention-creation completed in China abroad, it shall also provide the approval documents of the relevant competent department of the State Council. According to the provisions of Article 30 of China's Notarization Law, if a notarization institution considers that the certification materials provided in the application are true, lawful and sufficient, and the matters applied for notarization are true and lawful, it shall issue a notarial certificate to the parties within 15 working days from the date of accepting the notarization application. However, due to force majeure, supplementary certification materials or the need to verify relevant information, the time required is not counted in the time limit.