NTD Patent & Trademark Agency Ltd.
NTD Patent & Trademark Agency Ltd. is a China-based patent law firm with 48 years of recorded international activity (1978–2025). 4,674 total international patent cases are on record, spanning 4 foreign jurisdictions and 179 distinct corporate applicants. Sign in to open the complete partner network, year-by-year activity, decision-maker analysis, and named client relationships.
- International cases
- 4,674
- Last 5 years
- 1,000
- Applicants
- 179
- Flow type
- Incoming-heavy
Sent plus received relationship cases on this firm’s public profile. Can differ from the directory index. As of 2025.
Activity trend (last 10 years)
- Scope
- NTD Patent & Trademark Agency Ltd. · China
- Window
- 2017–2025
- As of
- Recorded activity through 2025
- Unit
- International exchange cases
View annual counts
| Year | International cases |
|---|---|
| 2017 | 273 |
| 2018 | 287 |
| 2019 | 415 |
| 2020 | 502 |
| 2021 | 522 |
| 2022 | 469 |
| 2023 | 310 |
| 2024 | 217 |
| 2025 | 4 |
Top international partners
Sends cases to
Similar China firms
Global firm case index used for directory ranking. Not the same as a profile’s international exchange total.
- China Science Patent & Trademark Agent Ltd.中科专利商标代理有限责任公司4,477 index cases
- Shanghai Patent & Trademark Law Office, LLC.上海专利商标事务所有限公司4,162 index cases
- Beijing King & Wood Mallesons4,028 index cases
- Beijing Unitalen Intellectual Property Co., Ltd.集佳知识产权代理有限公司3,951 index cases
- Liu Shen & Associates北京市柳沈律师事务所5,552 index cases
Locked in the full profile
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Decision-maker split
Firm-chosen vs applicant-chosen foreign counsel, when tagged.
Full partner list
Every observed counterpart, not only the public top five.
Named clients
Applicant relationships behind the exchange counts.