China patent firms that work most with United States firms

Ranked by patent family observations each China firm shares with United States firms, 2013–2022. A family is counted once for each United States firm it was shared with, so the same family can appear more than once. Later years are left out because many filings are not published yet.

#	Firm	Family observations with United States firms	United States firms
1	China Patent Agent (H.K.) Ltd.	45,088	1,902
2	Liu Shen & Associates北京市柳沈律师事务所	34,188	1,409
3	Beijing Unitalen Intellectual Property Co., Ltd.集佳知识产权代理有限公司	29,819	1,229
4	NTD Patent & Trademark Agency Ltd.	28,299	1,238
5	Beijing Sanyou Intellectual Property Agency Ltd.北京三友知识产权代理有限公司	23,048	981
6	Beijing King & Wood Mallesons	22,077	1,219
7	China Science Patent & Trademark Agent Ltd.中科专利商标代理有限责任公司	21,663	1,007
8	China Sinda Intellectual Property Ltd.中原信达知识产权代理有限责任公司	21,474	881
9	Shanghai Patent & Trademark Law Office, LLC.上海专利商标事务所有限公司	20,538	1,258
10	CCPIT Patent and Trademark Law Office中国贸促会专利商标事务所	20,334	1,387
11	Beijing Kangxin Intellectual Property Agency Co., Ltd.北京康信知识产权代理有限责任公司	18,314	1,049
12	BEIJING ZHONGZI LAW OFFICE	18,256	876
13	AFD China Intellectual Property Law Office北京安信方达知识产权代理有限公司	12,462	1,314
14	Ming & Sure Intellectual Property Law Firm北京铭硕知识产权代理有限公司	12,423	286
15	Lung Tin Intellectual Property Agent Ltd.	12,403	746
16	Beijing Linda Liu Intellectual Property Agency Office (General Partnership)	12,338	725
17	Leader Patent & Trademark Firm	11,846	641
18	Lee and Li-Leaven IPR Agency Ltd.	9,148	731
19	Tee & Howe Intellectual Property Attorneys	8,992	550
20	GE CHENG & CO., LTD	8,144	543
21	Beijing Beyond Patent Law Office	8,103	796
22	Lecome Intellectual Property Agent Ltd.	8,099	411
23	BEIJING INSIGHT INTELLECTUAL PROPERTY ATTORNEYS CO., LTD.	7,700	717
24	China PAT Intellectual Property Office	7,639	876
25	SHANGCHENG & PARTNERS	7,610	369

Compare China Patent Agent (H.K.) Ltd. side by side with

Find the right partner for your cases

Start free evaluation