Kyosei International Patent Office
特許業務法人共生国際特許事務所
Kyosei International Patent Office is a Japan-based patent law firm with 49 years of recorded international activity (1978–2026). 2,946 total international patent cases are on record, spanning 4 foreign jurisdictions and 107 distinct corporate applicants. Sign in to open the complete partner network, year-by-year activity, decision-maker analysis, and named client relationships.
- International cases
- 2,946
- Last 5 years
- 258
- Applicants
- 107
- Flow type
- Incoming-heavy
Sent plus received relationship cases on this firm’s public profile. Can differ from the directory index. As of 2026.
Activity trend (last 10 years)
- Scope
- Kyosei International Patent Office · Japan
- Window
- 2017–2026
- As of
- Recorded activity through 2026
- Unit
- International exchange cases
2026 is a partial year. Latest counts are provisional and should not be compared to a complete year.
View annual counts
| Year | International cases |
|---|---|
| 2017 | 31 |
| 2018 | 52 |
| 2019 | 148 |
| 2020 | 167 |
| 2021 | 110 |
| 2022 | 165 |
| 2023 | 35 |
| 2024 | 56 |
| 2025 | 1 |
| 2026 · partial | 1 |
Top international partners
Sends cases to
Similar Japan firms
Global firm case index used for directory ranking. Not the same as a profile’s international exchange total.
Locked in the full profile
This public page is a preview. Sign in to open the complete partner network, year-by-year activity, and decision-maker analysis for Kyosei International Patent Office.
Decision-maker split
Firm-chosen vs applicant-chosen foreign counsel, when tagged.
Full partner list
Every observed counterpart, not only the public top five.
Named clients
Applicant relationships behind the exchange counts.