If you have entrusted an agent, your patent will now show the agent. Legally speaking, an individual cannot represent a patent as an agent. If he represents you as an ordinary citizen and has no information about the patentee and the agency, the agency is generally not responsible.
According to your description, the name of the organization should have appeared. Beijing * * * Teng Intellectual Property Agency Co., Ltd. suggested that they be added as * * * co-defendants.