Kyoei International Patent & Trademark Office
共栄国際特許商標事務所
Public patent records for Kyoei International Patent & Trademark Office, 1978–2025: 1,087 patent families shared with other firms for 52 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
- 1,087
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 213
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 52
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Kyoei International Patent & Trademark 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 | 14 |
| 2018 | 32 |
| 2019 | 46 |
| 2020 | 76 |
| 2021 · preliminary | 37 |
| 2022 · preliminary | 25 |
| 2023 · preliminary | 6 |
| 2024 · preliminary | 9 |
| 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 |
|---|---|---|
| Generic packages, interconnections, connectors or other constructional details of devices covered by class H10IPC/CPC H10W | 39.7% | 21.2× |
| Semiconductor devices not covered by class H10IPC/CPC H01L | 38.0% | 5.8× |
| Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairingIPC/CPC B29C | 12.5% | 5.2× |
Yearly counts for 2018–2022, added up: 287 of 485 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.
- Sanada Patent Firm弁理士法人真田特許事務所1,085 shared patent families
- 赤穂特許事務所1,083 shared patent families
- Hanabusa Patent & Trademark Office弁理士法人はなぶさ特許商標事務所1,098 shared patent families
- Tokyo Central Patent Office1,067 shared patent families
- Arga Patent Office弁理士法人アルガ特許事務所1,109 shared patent families
Compare Kyoei International Patent & Trademark Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Kyoei International Patent & Trademark 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.