It is said that the patent of Chongqing Jinshan Technology is forged. Is it true?/You don't say.

There is a big difference between invalidity and forgery. Since others have applied, it means that they are qualified. Now it has been cancelled, indicating that the patent examination was not strict at that time and there were mistakes. Just like a teacher grading a test paper and giving you 100, you are happy to get 100. When you find that your test paper is wrong, you shouldn't get 100. Subjectively, you won't reveal it, and then it will be revealed by other students. It should be like this.