Ai Patent Office
弁理士法人あい特許事務所
Ai Patent Office is a Japan-based patent law firm with 48 years of recorded international activity (1978–2025). 1,471 total international patent cases are on record, spanning 4 foreign jurisdictions and 108 distinct corporate applicants. Sign in to open the complete partner network, year-by-year activity, decision-maker analysis, and named client relationships.
- International cases
- 1,471
- Last 5 years
- 125
- Applicants
- 108
- Flow type
- Incoming-heavy
Sent plus received relationship cases on this firm’s public profile. Can differ from the directory index. As of 2025.
Activity trend (last 10 years)
- Scope
- Ai Patent Office · Japan
- Window
- 2017–2025
- As of
- Recorded activity through 2025
- Unit
- International exchange cases
View annual counts
| Year | International cases |
|---|---|
| 2017 | 12 |
| 2018 | 19 |
| 2019 | 31 |
| 2020 | 56 |
| 2021 | 60 |
| 2022 | 60 |
| 2023 | 27 |
| 2024 | 37 |
| 2025 | 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.
- Shinyu International Patent Office弁理士法人信友国際特許事務所1,471 index cases
- Katayama Patent Office弁理士法人片山特許事務所1,473 index cases
- Unias International Patent Office弁理士法人ユニアス国際特許事務所1,478 index cases
- Niki Global IP Patent Firm新樹グローバル・アイピー特許業務法人1,464 index cases
- Axis International Patent Firmアクシス国際特許業務法人1,461 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 Ai 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.