The principle of first to apply, the principle of one application for one trademark, and the principle of voluntary registration. Conditions for trademark registration: ① The components of the trademark must be distinctive and easy to distinguish; ② The trademark applied for registration must not use words or graphics prohibited by law; ③ The trademark applied for registration on the same or similar goods must not be used with other people’s trademarks. Identical or similar words, graphics or combinations of registered trademarks or preliminarily approved trademarks; ④ If a registered trademark is canceled or expires and will not be renewed, within 1 year from the date of cancellation or cancellation, trademarks that are identical or similar to the trademark Cannot be approved. I hope my answer can be helpful to you. If you still have any questions, go to a regular agency for free consultation. There are very few free agencies now, and even searching for a trademark costs money. Alas, it’s really cruel. , By the way, I have an agency here that provides free inquiries. The registration success rate is very high, and the fees are not high. It is very good. My friend registered the trademark there. The most important free inquiry, you can search for "Zhizhi" on Baidu. E-Net National Trademark Registration Center" allows you to conduct trademark registration consultation and free trademark inquiries.