Beijing Sanyou Intellectual Property Agency Ltd.
北京三友知识产权代理有限公司
Public patent records for Beijing Sanyou Intellectual Property Agency Ltd., 1979–2025: 3,618 patent families shared with other firms for 131 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
- 3,618
- 1979–2025. One family can be counted more than once.
- Activity 2016–2020
- 1,432
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 131
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Beijing Sanyou Intellectual Property 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 | 140 |
| 2018 | 244 |
| 2019 | 381 |
| 2020 | 562 |
| 2021 · preliminary | 503 |
| 2022 · preliminary | 487 |
| 2023 · preliminary | 288 |
| 2024 · preliminary | 318 |
| 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 |
|---|---|---|
| Air-conditioning; air-humidification; ventilation; use of air currents for screeningIPC/CPC F24F | 2.1% | 3.8× |
| Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energyIPC/CPC H01M | 11.5% | 2.4× |
| Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bondsIPC/CPC C08F | 3.7% | 2.1× |
| Working-up; general processes of compounding; after-treatment not covered by subclasses C08B, C08C, C08F, C08G or C08HIPC/CPC C08J | 3.1% | 1.8× |
Yearly counts for 2018–2022, added up: 13,055 of 25,267 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.
- Beijing Linda Liu Intellectual Property Agency Office (General Partnership)3,635 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
- China Sinda Intellectual Property Ltd.中原信达知识产权代理有限责任公司3,209 shared patent families
- Beijing King & Wood Mallesons4,034 shared patent families
- Lee and Li-Leaven IPR Agency Ltd.3,185 shared patent families
Compare Beijing Sanyou Intellectual Property Agency Ltd side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Beijing Sanyou Intellectual Property 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.