Iwatani International Patent Office
岩谷国際特許事務所
Public patent records for Iwatani International Patent Office, 1978–2025: 744 patent families shared with other firms for 134 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
- 744
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 118
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 134
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Iwatani International Patent Office · Japan
- 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 | 16 |
| 2018 | 21 |
| 2019 | 19 |
| 2020 | 30 |
| 2021 · preliminary | 30 |
| 2022 · preliminary | 45 |
| 2023 · preliminary | 28 |
| 2024 · preliminary | 2 |
| 2025 · preliminary | 1 |
Technology fields it focuses on
Fields where this firm's share of patent families is well above the average for Japan firms, 2018–2022.
| Field | Share of its families | vs Japan average |
|---|---|---|
| Specific therapeutic activity of chemical compounds or medicinal preparationsIPC/CPC A61P | 51.1% | 5.1× |
| Heterocyclic compoundsIPC/CPC C07D | 20.1% | 4.8× |
| Microorganisms or enzymes; compositions thereof; propagating, preserving, or maintaining microorganisms; mutation or genetic engineering; culture mediaIPC/CPC C12N | 25.2% | 4.6× |
| Preparations for medical, dental or toiletry purposesIPC/CPC A61K | 55.8% | 4.5× |
| PeptidesIPC/CPC C07K | 14.7% | 3.2× |
Yearly counts for 2018–2022, added up: 278 of 339 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 Japan firms
Yearly counts since 1990, added up. One family can be counted more than once.
- MAEDA SoGo Patent Attorney Office前田総合特許事務所746 shared patent families
- R&C Patent Firm740 shared patent families
- Konishi Nagaoka Patent Office小西永岡特許事務所739 shared patent families
- R&C IP LAW FIRM735 shared patent families
- FIELDS IP Attorneys PPC弁理士法人フィールズ国際特許事務所 新横浜オフィス733 shared patent families
Compare Iwatani International Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Iwatani International Patent 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.