China Science Patent & Trademark Agent Ltd.
中科专利商标代理有限责任公司
Public patent records for China Science Patent & Trademark Agent Ltd., 1978–2025: 4,446 patent families shared with other firms for 133 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
- 4,446
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 1,258
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 133
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- China Science Patent & Trademark Agent 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 | 196 |
| 2018 | 209 |
| 2019 | 263 |
| 2020 | 423 |
| 2021 · preliminary | 345 |
| 2022 · preliminary | 386 |
| 2023 · preliminary | 238 |
| 2024 · preliminary | 321 |
| 2025 · preliminary | 7 |
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 |
|---|---|---|
| Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices; materials therefor; originals therefor; apparatus specially adapted thereforIPC/CPC G03F | 3.6% | 4.6× |
| Printed circuits; casings or constructional details of electric apparatus; manufacture of assemblages of electrical componentsIPC/CPC H05K | 4.0% | 1.9× |
| Optical elements, systems or apparatusIPC/CPC G02B | 6.4% | 1.8× |
| Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein; non-linear optics; frequency-changing of light; optical logic elements; optical analogue/digital convertersIPC/CPC G02F | 2.1% | 1.8× |
| Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in generalIPC/CPC H05B | 2.3% | 1.8× |
Yearly counts for 2018–2022, added up: 11,471 of 20,726 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.
- Shanghai Patent & Trademark Law Office, LLC.上海专利商标事务所有限公司4,170 shared patent families
- NTD Patent & Trademark Agency Ltd.4,791 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
- Beijing Sanyou Intellectual Property Agency Ltd.北京三友知识产权代理有限公司3,692 shared patent families
Compare China Science Patent & Trademark Agent Ltd side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for China Science Patent & Trademark Agent 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.