2 Zhengzhou Lianke Patent Office
Xinxiang Pingyuan patent co., ltd.
4 Zhengzhou Zhongyuan Patent Office Co., Ltd.
5 Zhengzhou Zhong Min Patent Agency Co., Ltd.
6 Zhengzhou Datong Patent Agency Co., Ltd.
7 Luoyang Kaixuan Patent Office
8 Zhengzhou Tianyang Patent Office
9 Zhengzhou Yi Kai Patent Office
10 Anyang zhihao patent agency office
Nanyang zhi Wei bo Chuang patent office
Those are all from Henan.