Of course, if you find some informal so-called intellectual property companies to apply for patents, there may be leaks and money leakage. You can go to the website of the provincial or municipal intellectual property office for inquiry. The registered institutions are all formal institutions, and their credibility is generally high. If there is any dispute, you can request the provincial or municipal intellectual property department to handle it.
In addition, patent agents are also divided into three categories: machinery (daily necessities), chemistry (biomedicine) and electronics (electromechanical and automation). When applying for a patent, it is best to find an agent who graduated from this major. Agents of the same major category will know more about technology, so as to write patent application documents and patent claims. Therefore, when looking for an agency to apply for a patent, we should also know about the professional background of the patent agent of the agency. Or call the local intellectual property office to find out about the situation and reputation of these patent agencies. At the same time, it is necessary to sign an agency service contract and a confidentiality agreement. If there are leaks and disputes, legal responsibilities may be investigated.