Showa International Patent Office
Public patent records for Showa International Patent Office, 1978–2024: 571 patent families shared with other firms for 53 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
- 571
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 79
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 53
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 6
Activity trend (2017–2026)
- Scope
- Showa International Patent Office · Japan
- 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 | 5 |
| 2018 | 9 |
| 2019 | 28 |
| 2020 | 20 |
| 2021 · preliminary | 22 |
| 2022 · preliminary | 12 |
| 2023 · preliminary | 12 |
| 2024 · preliminary | 5 |
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 |
|---|---|---|
| Filters implantable into blood vessels; prostheses; devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents; orthopaedic, nursing or contraceptive devices; fomentation; treatment or protection of eyes or ears; bandages, dressings or absorbent pads; first-aid kitsIPC/CPC A61F | 14.3% | 8.1× |
| Non-metallic elements; compounds thereof; metalloids or compounds thereof not covered by subclass C01CIPC/CPC C01B | 10.5% | 6.8× |
| Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energyIPC/CPC H01M | 19.6% | 3.5× |
| Heterocyclic compoundsIPC/CPC C07D | 10.5% | 2.5× |
| Semiconductor devices not covered by class H10IPC/CPC H01L | 13.3% | 2.0× |
Yearly counts for 2018–2022, added up: 286 of 379 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.
- SAKURA PATENT OFFICE, p.c.571 shared patent families
- Shigeno International Patent Office重野国際特許事務所573 shared patent families
- うぶかた特許事務所575 shared patent families
- YUWA INTERNATIONAL PATENT FIRM優和国際特許事務所567 shared patent families
- Heiwa International Patent Office弁理士法人平和国際特許事務所566 shared patent families
Compare Showa International Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Showa 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.