What should I pay attention to when looking for a patent agency to apply for a patent? (Zhengzhou)

About 1500. Application for official fee plus agency fee. Attention should be paid to their qualifications and whether they are filed. It can be found in the local intellectual property office. I suggest you look for more and ask, in fact, the attitude of unqualified service is very good. Qualified does not mean that the work is done in place.