Formal review: after submitting the application, conduct legal review on the submitted application documents, trademark drawings, power of attorney and other documents, and grant the application date and application number that meet the requirements; Substantive examination: according to the law, examine whether a trademark can be registered, whether it is the same as or similar to a previously registered trademark, and whether it violates the prohibition clause of the Trademark Law. For trademarks that fail the substantive examination, the examiner will notify the applicant in writing and inform the reasons for rejection. The applicant can submit the examination opinions within the time limit from the date of receiving the notice of rejection, otherwise the application will be regarded as abandoned, and the application date and application number will not be retained;