Are you asking about the reason why the review of Chinese and English combination trademarks takes so long? There are blind spots, manual review, and subjectivity in trademark searches.

1. There is a blind spot in trademark search: Trademark search is required before trademark registration, but if you happen to encounter a blind spot in trademark search, it will extend the registration time.

2. Trademark review is a manual review and is subjective: after all trademark registration applications are submitted to the Trademark Office, they are reviewed manually. Manual review will reveal the knowledge level and level of each examiner. Considering the problem from different angles, even if different examiners for the same trademark obtain different examination results, the subjectivity of manual review by the Trademark Office is also one of the reasons why trademark registration takes a long time.