China Council for the Promotion of International Trade Patent and Trademark Office
Beijing sanyou intellectual property agency co., ltd.
Beijing liushen lawyer office
Shanghai patent and trademark office co., ltd
China Patent Agency (HK) Co., Ltd.
Beijing yinlong intellectual property agency co., ltd.
Beijing kangxin intellectual property agency co., ltd.
Beijing Lu Hao Intellectual Property Agency Co., Ltd.
Beijing Tongli Juncheng Intellectual Property Agency Co., Ltd.