Otsuka International Patent
Public patent records for Otsuka International Patent, 1978–2020: 6,033 patent families shared with other firms for 190 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
- 6,033
- 1978–2020. One family can be counted more than once.
- Activity 2016–2020
- 354
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 190
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Otsuka International Patent · Japan
- Filing years
- 2017–2020
- Unit
- Distinct families per year
Each family counts once within a year. A family may recur in multiple years.
View annual counts
| Year | Distinct families per year |
|---|---|
| 2017 | 44 |
| 2018 | 25 |
| 2019 | 75 |
| 2020 | 84 |
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.
- HARAKENZO WORLD PATENT & TRADEMARK特許業務法人HARAKENZO WORLD PATENT & TRADEMARK5,971 shared patent families
- Abe Ikubo Katayama Law6,220 shared patent families
- Meisei International Patent Office特許業務法人明成国際特許事務所5,813 shared patent families
- Symphonia Intellectual Property Office清水 初志6,461 shared patent families
- RYUKA & PARTNERS龍華国際特許業務法人6,550 shared patent families
Compare Otsuka International Patent side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Otsuka International Patent. 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.