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China Patent Attorneys and IP Law Firms

39 China patent firms, ordered by shared patent families. Open a firm to see the firms it works with in other countries.

Yearly counts since 1990, added up. One family can be counted more than once.

How firms are counted
Who is listed
Firms at the IP5 offices with at least 500 shared patent families since 1990 (yearly counts, added up). Individual representatives and smaller firms are not listed.
Default order
By shared patent families. One family can be counted under several firms and years; this order does not measure firm quality or market share.
Profile totals
Profile totals use the counting basis stated beside each metric. Families can appear in several groups or years, so profile and directory totals can differ.
Signed-in analysis
Uses the filing years and filters you choose, so its counts can differ from these public totals.
#FirmShared patent families
1China Patent Agent (H.K.) Ltd.6,454
2CCPIT Patent and Trademark Law Office
中国贸促会专利商标事务所
5,908
3Liu Shen & Associates
北京市柳沈律师事务所
5,592
4NTD Patent & Trademark Agency Ltd.4,791
5China Science Patent & Trademark Agent Ltd.
中科专利商标代理有限责任公司
4,494
6Shanghai Patent & Trademark Law Office, LLC.
上海专利商标事务所有限公司
4,170
7Beijing King & Wood Mallesons4,034
8Beijing Unitalen Intellectual Property Co., Ltd.
集佳知识产权代理有限公司
3,965
9Beijing Sanyou Intellectual Property Agency Ltd.
北京三友知识产权代理有限公司
3,692
10Beijing Linda Liu Intellectual Property Agency Office (General Partnership)3,635
11China Sinda Intellectual Property Ltd.
中原信达知识产权代理有限责任公司
3,209
12Lee and Li-Leaven IPR Agency Ltd.3,185
13Lung Tin Intellectual Property Agent Ltd.2,916
14Lecome Intellectual Property Agent Ltd.2,723
15BEIJING ZHONGZI LAW OFFICE2,628
16Leader Patent & Trademark Firm1,962
17Beijing DHLZ Intellectual Property Law LLC1,838
18Beijing Kangxin Intellectual Property Agency Co., Ltd.
北京康信知识产权代理有限责任公司
1,836
19SHANGCHENG & PARTNERS1,701
20Ming & Sure Intellectual Property Law Firm
北京铭硕知识产权代理有限公司
1,562
21Dragon Intellectual Property Law Firm
北京银龙知识产权代理有限公司
1,558
22Tee & Howe Intellectual Property Attorneys1,278
23AFD China Intellectual Property Law Office
北京安信方达知识产权代理有限公司
1,272
24GE CHENG & CO., LTD1,149
25Beijing Jeekai Intellectual Property Ltd.1,113

39 firms · page 1 of 2

All 39 China firms in this directory

Hiring a patent attorney in China

The China National Intellectual Property Administration (CNIPA) examines applications in Chinese. A foreign applicant with no habitual residence or business office in China must appoint a patent agency established in China (Patent Law, Article 18).

So a firm abroad usually files and prosecutes through a Chinese patent agency. This directory lists 39 Chinese firms, ordered by the patent families each shares with firms in other countries. The most active are China Patent Agent (H.K.) Ltd., CCPIT Patent and Trademark Law Office and Liu Shen & Associates.

To shortlist, open the ranking for your own country below: it lists the China firms that already work most with firms there.

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