1. Beijing guolinmao patent agency co., ltd.
2. Beijing Lu Hao Intellectual Property Agency Co., Ltd
3 Beijing Zhongchuang Sunshine Intellectual Property Agency Co., Ltd.
4. Beijing Zhong Jian United Patent Office
5. China Aerospace Science and Technology Patent Center (National Defense)
6. Electronic Patent Center of Ministry of Information Industry (National Defense)
7. Beijing Bangxinyang Patent and Trademark Agency Co., Ltd..
8. Beijing Zhongshiyou Intellectual Property Agency Co., Ltd.
9. Beijing Jinfubang Patent Office Co., Ltd.
10. Beijing Intel Intellectual Property Agency Co., Ltd.
1 1. Beijing zhongjiaoke patent agency co., ltd.
12. Beijing Deqi Intellectual Property Agency Co., Ltd.
13. Zhongke Patent and Trademark Agency Co., Ltd.
14. China Aerospace Science and Industry Corporation (National Defense) Patent Center
15. China People's Liberation Army Air Force Patent Service Center (National Defense)
16. Patent Service Center of General Logistics Department of China People's Liberation Army (National Defense)
17. Patent and Trademark Office of China Council for the Promotion of International Trade.
18. Beijing Zhiben Village Patent Office
19. China People's Liberation Army (National Defense) Second Artillery Patent Service Center.