There are some solutions, such as changing inventors and applicants, adding you to the ranks of patent inventors and applicants, and invalidating patents with your published articles, so that rights cannot be established.
The premise is to know the content of the other party's patent application. Maybe this idea was originally put forward by you, but others have improved it on your basis, which is already a perfect technical solution. Others have also contributed to the invention, and you can also apply.
To say the least, China applied for the patent first, and the same invention was only granted to the applicant first, not the inventor first. So it is reasonable for the other party to file a patent application, although he didn't make the invention first. You may hate to say this, but it is allowed by China's patent law. If you have any objection to the ownership of the patent, you can only complain to the local intellectual property office, but it may not be supported.