Yamamoto Kenji Patent Office
山本健二特許事務所
Public patent records for Yamamoto Kenji Patent Office, 1978–2016: 565 patent families shared with other firms for 92 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
- 565
- 1978–2016. One family can be counted more than once.
- Activity 2016–2020
- 2
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 92
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
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.
- Serio International Patent and Trademark Officeセリオ国際特許商標事務所565 shared patent families
- Hoshin International Patent Office565 shared patent families
- Heiwa International Patent Office弁理士法人平和国際特許事務所566 shared patent families
- YUWA INTERNATIONAL PATENT FIRM優和国際特許事務所567 shared patent families
- SAKURA PATENT OFFICE, p.c.571 shared patent families
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Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Yamamoto Kenji Patent 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.