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