Sowa International Patent Office
創和国際特許事務所弁理士法人
Public patent records for Sowa International Patent Office, 1979–2023: 661 patent families shared with other firms for 42 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
- 661
- 1979–2023. One family can be counted more than once.
- Activity 2016–2020
- 72
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 42
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Sowa International Patent Office · Japan
- Filing years
- 2017–2023
- 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 | 5 |
| 2018 | 4 |
| 2019 | 22 |
| 2020 | 34 |
| 2021 · preliminary | 19 |
| 2022 · preliminary | 15 |
| 2023 · preliminary | 11 |
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 |
|---|---|---|
| Valves; taps; cocks; actuating-floats; devices for venting or aeratingIPC/CPC F16K | 28.0% | 56.6× |
Yearly counts for 2018–2022, added up: 207 of 224 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.
- IKEDA PATENT OFFICE弁理士法人池田国際特許事務所662 shared patent families
- Lexia Patent Law Officeレクシア特許法律事務所659 shared patent families
- Okada Patents and Trademark Office, P.C.657 shared patent families
- ITEC International Patent Firm652 shared patent families
- Fujimoto Partners Patent Firm弁理士法人藤本パートナーズ671 shared patent families
Compare Sowa International Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Sowa 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.