The patent for utility model has not been granted. Can papers written according to this patent be submitted? Is it against professional ethics?

If patents and articles are owned by themselves, it is not against professional ethics. If the patent is granted, your paper will have no novelty. If the reviewer finds your patent, it may be based on the manuscript. I used to have an article like this. I applied for a patent first, and the patent was made public. I voted for a Korean magazine, and finally the reviewer refused because I applied for a patent. However, there are also many magazines that will not reject the manuscript.