Nagato International Patent Office
長門国際特許事務所
Public patent records for Nagato International Patent Office, 1978–2021: 849 patent families shared with other firms for 71 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
- 849
- 1978–2021. One family can be counted more than once.
- Activity 2016–2020
- 32
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 71
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 6
Activity trend (2017–2026)
- Scope
- Nagato International Patent Office · Japan
- Filing years
- 2017–2021
- 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 | 2 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 · preliminary | 1 |
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.
- Pro-Spec Patent Office特許業務法人プロスペック特許事務所848 shared patent families
- Sumitomo Patent Office住友特許事務所853 shared patent families
- Ozawa Patent Attorneys' Office小澤特許事務所855 shared patent families
- MIYASAKA INTELLECTUAL PROPERTY OFFICEみやさか国際特許商標事務所 長野855 shared patent families
- IPD International Patent Firmアイ・ピー・ディー国際特許業務法人861 shared patent families
Compare Nagato International Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Nagato 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.