China Sinda Intellectual Property Ltd.
中原信达知识产权代理有限责任公司
Public patent records for China Sinda Intellectual Property Ltd., 1978–2025: 3,127 patent families shared with other firms for 95 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
- 3,127
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 856
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 95
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- China Sinda Intellectual Property 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 | 86 |
| 2018 | 159 |
| 2019 | 235 |
| 2020 | 289 |
| 2021 · preliminary | 313 |
| 2022 · preliminary | 348 |
| 2023 · preliminary | 220 |
| 2024 · preliminary | 118 |
| 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 |
|---|---|---|
| Speech analysis techniques or speech synthesis; speech recognition; speech or voice processing techniques; speech or audio coding or decodingIPC/CPC G10L | 2.4% | 4.0× |
| Printed circuits; casings or constructional details of electric apparatus; manufacture of assemblages of electrical componentsIPC/CPC H05K | 5.6% | 2.7× |
| Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energyIPC/CPC H01M | 10.7% | 2.3× |
| Propulsion of electrically-propelled vehicles; supplying electric power for auxiliary equipment of electrically-propelled vehicles; electrodynamic brake systems for vehicles in general; magnetic suspension or levitation for vehicles; monitoring operating variables of electrically-propelled vehicles; electric safety devices for electrically-propelled vehiclesIPC/CPC B60L | 2.6% | 2.1× |
| Measuring electric variables; measuring magnetic variablesIPC/CPC G01R | 2.6% | 1.9× |
Yearly counts for 2018–2022, added up: 10,763 of 16,563 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.
- Lee and Li-Leaven IPR Agency Ltd.3,185 shared patent families
- Lung Tin Intellectual Property Agent Ltd.2,916 shared patent families
- Lecome Intellectual Property Agent Ltd.2,723 shared patent families
- BEIJING ZHONGZI LAW OFFICE2,628 shared patent families
- Beijing Linda Liu Intellectual Property Agency Office (General Partnership)3,635 shared patent families
Compare China Sinda Intellectual Property Ltd side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for China Sinda Intellectual Property 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.