Trademark review. Trademark examination is divided into formal examination and substantive examination. Examination of the form of trademark registration. The application date for trademark registration shall be the date when the Trademark Office receives the application. The Trademark Office will issue an acceptance notice to applications that meet the formal requirements. Trademark substantive examination is a series of activities carried out by the trademark registration authority to check whether the trademark registration application complies with the provisions of the Trademark Law, data retrieval, analysis and comparison, investigation and research, and decision to give preliminary approval or reject the application; Shanghai Leino Intellectual Property Trademark Registration services, 12 years of professional experience, escorting corporate intellectual property planning. You can Baidu their website or call them directly for free consultation.