there is no difference between the two ways in the examination of trademark registration applications. The main difference is that the way of contact is different, and the way of submitting books and documents is slightly different. In terms of the way of contact, if you go directly to the Trademark Office, the applicant will directly contact the Trademark Office during the handling process; Where a trademark agency is entrusted to handle the matter, the applicant will contact the Trademark Office through the trademark agency, but not directly. In terms of the documents submitted, if they are handled directly at the Trademark Office, the applicant shall submit a copy of the agent's own ID card in addition to other documents that should be submitted; Where a trademark agency is entrusted, the applicant shall, in addition to other documents that should be submitted, submit a power of attorney for entrusting a trademark agency to handle trademark registration matters. In the way of document submission, if the applicant handles it by himself, the applicant or the agent will directly submit the application documents to the acceptance window of the trademark registration hall; Trademark agencies can submit the application documents directly, by mail or through express delivery companies to the Trademark Office, or they can submit applications for trademark registration through the online application system. In the way of document delivery, the applicant handles it himself, and all kinds of documents of the Trademark Office are delivered to the parties; If it is entrusted to a trademark agency, the documents shall be delivered to the trademark agency.