An agent who performs trademark agency work is called a trademark agent. There are no dedicated agents for other intellectual property categories.
Patent agents must pass national qualification accreditation before they can act as agents for patent matters, otherwise they are called black agents. To qualify as a patent agent, you are required to obtain a nationally recognized bachelor's degree or above in science and engineering and obtain a diploma. After passing the patent agent examination and obtaining the qualification certificate, you will intern in a patent agency for one year. After obtaining the practicing certificate, you will become a patent agent.