First of all, it depends on how different words with the same pronunciation are. If you only change the radicals or the radicals and characters look very similar, you can't register. If the words are completely different, but the meaning is the same or similar, or the words have no significant meaning, they cannot be registered; If the words used are completely different, and the words used are significant and obviously different from the former, it is possible to register successfully. There is also the subjective judgment and blind spot of the examiner of the Trademark Office (it takes about half a year for the Trademark Office to receive the application and send out the acceptance notice), so it is not 100% sure, and the probability of success is about seven floors.