NTD Patent & Trademark Agency Ltd.
Public patent records for NTD Patent & Trademark Agency Ltd., 1978–2025: 4,689 patent families shared with other firms for 179 clients (applicants). Sign in to explore the app’s partner network, selected filing periods, filing activity, and client relationships.
- Patent families shared with other firms
- 4,689
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 1,692
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 179
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- NTD Patent & Trademark Agency Ltd. · China
- Filing years
- 2017–2025
- Unit
- Distinct families per year
2021–2026 are preliminary. Patent filings publish about 18 months after filing, and foreign filings can enter later, so these counts are still filling in.
Each family counts once within a year. A family may recur in multiple years.
View annual counts
| Year | Distinct families per year |
|---|---|
| 2017 | 275 |
| 2018 | 288 |
| 2019 | 417 |
| 2020 | 502 |
| 2021 · preliminary | 522 |
| 2022 · preliminary | 471 |
| 2023 · preliminary | 310 |
| 2024 · preliminary | 222 |
| 2025 · preliminary | 4 |
Technology fields it focuses on
Fields where this firm's share of patent families is well above the average for China firms, 2018–2022.
| Field | Share of its families | vs China average |
|---|---|---|
| Diagnosis; surgery; identificationIPC/CPC A61B | 8.7% | 1.8× |
| Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other wavesIPC/CPC G01S | 3.1% | 1.7× |
| Image data processing or generation, in generalIPC/CPC G06T | 5.3% | 1.7× |
| TransmissionIPC/CPC H04B | 4.7% | 1.6× |
| Measuring electric variables; measuring magnetic variablesIPC/CPC G01R | 2.1% | 1.6× |
Yearly counts for 2018–2022, added up: 17,790 of 26,224 families carry an IPC or CPC classification. Shares are of those classified families, and one family can fall in several fields.
Frequently associated firms
Firms that most often appear on the same patent families. One family can be counted more than once, so these are not unique totals.
Similar China firms
Yearly counts since 1990, added up. One family can be counted more than once.
- China Science Patent & Trademark Agent Ltd.中科专利商标代理有限责任公司4,494 shared patent families
- Shanghai Patent & Trademark Law Office, LLC.上海专利商标事务所有限公司4,170 shared patent families
- Beijing King & Wood Mallesons4,034 shared patent families
- Beijing Unitalen Intellectual Property Co., Ltd.集佳知识产权代理有限公司3,965 shared patent families
- Liu Shen & Associates北京市柳沈律师事务所5,592 shared patent families
Compare NTD Patent & Trademark Agency Ltd side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for NTD Patent & Trademark Agency Ltd. App counts follow the filing years and corridors you choose, so they can differ from this public profile.
Filing activity
Recorded patent families across the filing years you choose.
Full partner list
Every observed counterpart for the filing period you choose.
Named clients
Applicant relationships behind the exchange counts.