Tsubame Patent Office
つばめ特許事務所
Tsubame Patent Office is a Japan-based patent law firm with 47 years of recorded international activity (1978–2024). 946 total international patent cases are on record, spanning 4 foreign jurisdictions and 187 distinct corporate applicants. Sign in to open the complete partner network, year-by-year activity, decision-maker analysis, and named client relationships.
- International cases
- 946
- Last 5 years
- 183
- Applicants
- 187
- Flow type
- Incoming-heavy
Sent plus received relationship cases on this firm’s public profile. Can differ from the directory index. As of 2024.
Activity trend (last 10 years)
- Scope
- Tsubame Patent Office · Japan
- Window
- 2017–2024
- As of
- Recorded activity through 2024
- Unit
- International exchange cases
View annual counts
| Year | International cases |
|---|---|
| 2017 | 25 |
| 2018 | 16 |
| 2019 | 28 |
| 2020 | 57 |
| 2021 | 92 |
| 2022 | 97 |
| 2023 | 58 |
| 2024 | 28 |
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.
- AXIS Patent Internationalアクシス国際弁理士法人 (届出番号:G0058)950 index cases
- Hibiki International Patent Office響国際特許事務所954 index cases
- Hosoda International Patent Office細田国際特許事務所958 index cases
- Takahashi-Hayashi & Partners特許業務法人高橋・林アンドパートナーズ933 index cases
- Senda International Patent Office特許業務法人センダ国際特許事務所931 index cases
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 Tsubame 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.