BEIJING ZHONGZI LAW OFFICE
Public patent records for BEIJING ZHONGZI LAW OFFICE, 1978–2024: 2,537 patent families shared with other firms for 93 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
- 2,537
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 860
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 93
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- BEIJING ZHONGZI LAW OFFICE · China
- Filing years
- 2017–2024
- 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 | 156 |
| 2018 | 152 |
| 2019 | 183 |
| 2020 | 252 |
| 2021 · preliminary | 228 |
| 2022 · preliminary | 226 |
| 2023 · preliminary | 174 |
| 2024 · preliminary | 120 |
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 |
|---|---|---|
| Foods, foodstuffs or non-alcoholic beverages, not otherwise provided for; preparation or treatment thereofIPC/CPC A23L | 2.8% | 2.9× |
| Arrangement or mounting of propulsion units or of transmissions in vehicles; arrangement or mounting of plural diverse prime-movers in vehicles; auxiliary drives for vehicles; instrumentation or dashboards for vehicles; arrangements in connection with cooling, air intake, gas exhaust or fuel supply of propulsion units in vehiclesIPC/CPC B60K | 3.1% | 2.7× |
| Conjoint control of vehicle sub-units of different type or different function; control systems specially adapted for hybrid vehicles; road vehicle drive control systems for purposes not related to the control of a particular sub-unitIPC/CPC B60W | 3.2% | 2.4× |
| Non-metallic elements; compounds thereof; metalloids or compounds thereof not covered by subclass C01CIPC/CPC C01B | 2.2% | 2.0× |
| Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatusIPC/CPC B01J | 3.0% | 2.0× |
Yearly counts for 2018–2022, added up: 9,438 of 14,013 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.
- Lecome Intellectual Property Agent Ltd.2,723 shared patent families
- Lung Tin Intellectual Property Agent Ltd.2,916 shared patent families
- Leader Patent & Trademark Firm1,962 shared patent families
- Lee and Li-Leaven IPR Agency Ltd.3,185 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
Compare BEIJING ZHONGZI LAW OFFICE side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for BEIJING ZHONGZI LAW OFFICE. 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.