Wu, Feng & Zhang
Public patent records for Wu, Feng & Zhang, 1978–2024: 591 patent families shared with other firms for 46 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
- 591
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 319
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 46
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Wu, Feng & Zhang · 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 | 55 |
| 2018 | 50 |
| 2019 | 88 |
| 2020 | 79 |
| 2021 · preliminary | 50 |
| 2022 · preliminary | 56 |
| 2023 · preliminary | 53 |
| 2024 · preliminary | 10 |
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 |
|---|---|---|
| PeptidesIPC/CPC C07K | 26.3% | 9.1× |
| Fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixtureIPC/CPC C12P | 8.2% | 8.4× |
| Specific therapeutic activity of chemical compounds or medicinal preparationsIPC/CPC A61P | 49.9% | 8.3× |
| Heterocyclic compoundsIPC/CPC C07D | 19.9% | 7.9× |
| Preparations for medical, dental or toiletry purposesIPC/CPC A61K | 54.4% | 7.1× |
Yearly counts for 2018–2022, added up: 2,045 of 2,340 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 HANKUN LAW OFFICES577 shared patent families
- Advance China IP Law Office Co., Ltd.612 shared patent families
- TDIP&PARTNERS560 shared patent families
- Beijing ZBSD Patent & Trademark Agent Ltd.北京中博世达专利商标代理有限公司560 shared patent families
- Shanghai Watson & Band Intellectual Property Agency Co., Ltd.649 shared patent families
Compare Wu, Feng & Zhang side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Wu, Feng & Zhang. 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.