There are three types of registered trademarks that can be submitted for registration: text, pinyin, and graphics. The graphics are similar to the other two and are easier to distinguish. So how should we distinguish between text and pinyin? What are the criteria for judging the similarity between pinyin trademarks and word trademarks? Let’s analyze it with everyone today. The "Standards for Determining the Similarity of Pinyin Trademarks and Chinese Character Trademarks" formulated by the Trademark Office solved this problem. 1. Chinese character trademarks and their corresponding pinyin trademarks are generally not considered similar trademarks (such as Tianda and TIANDA). However, if the prior right is a well-known trademark or has other specific meanings, it will be deemed similar (for example: Moutai and MAOTAI). 2. Chinese character trademarks and trademarks that are a combination of the same Chinese characters and pinyin are generally judged to be similar trademarks (such as Tianda and TIANDA). 3. Pinyin trademarks and combination trademarks composed of the same pinyin plus Chinese characters are generally regarded as similar trademarks (such as: TIANDA and TIANDA; TIANDA and TIANDA). 4. Pinyin trademarks and English trademarks that are similar to them are judged to be similar trademarks (such as: NANTIAN (pinyin for Nantian) and NANTION; PANDA (pinyin for Panda) and PANDA (English for panda)). 5. If two trademarks are composed of Chinese characters plus their corresponding pinyin combinations, if the Chinese characters are not similar, they will generally not be judged as similar trademarks (such as TIANDA and TIANDA). The general principles for determining the similarity of pinyin trademarks and Chinese character trademarks can be summarized as follows: Chinese characters do not exclude pinyin, and pinyin does not exclude Chinese characters. Chinese characters with pinyin added are mutually exclusive with individual pinyin, and different Chinese characters with the same pinyin are not mutually exclusive. Considering that: 1. Pinyin trademarks cannot exclude Chinese characters, therefore, the protection of Pinyin trademarks alone is weak; 2. Pinyin + Chinese character trademarks are more unique and less likely to be similar to previous applications. Therefore, I recommend that clients choose Chinese characters that are different from those previously applied for and add pinyin.