Shobayashi International Patent and Trademark Office, P.C.
弁理士法人正林国際特許商標事務所
Public patent records for Shobayashi International Patent and Trademark Office, P.C., 1978–2025: 7,891 patent families shared with other firms for 710 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
- 7,891
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 1,072
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 710
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 6
Activity trend (2017–2026)
- Scope
- Shobayashi International Patent and Trademark Office, P.C. · Japan
- Filing years
- 2017–2025
- Unit
- Distinct families per year
2021–2026 are preliminary. Patent filings publish about 18 months after filing, and foreign filings can enter later, so these counts are still filling in.
Each family counts once within a year. A family may recur in multiple years.
View annual counts
| Year | Distinct families per year |
|---|---|
| 2017 | 109 |
| 2018 | 101 |
| 2019 | 299 |
| 2020 | 377 |
| 2021 · preliminary | 311 |
| 2022 · preliminary | 401 |
| 2023 · preliminary | 126 |
| 2024 · preliminary | 190 |
| 2025 · preliminary | 1 |
Technology fields it focuses on
Fields where this firm's share of patent families is well above the average for Japan firms, 2018–2022.
| Field | Share of its families | vs Japan average |
|---|---|---|
| Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatusIPC/CPC B01J | 4.3% | 2.1× |
| Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials thereforIPC/CPC C09D | 4.0% | 1.7× |
Yearly counts for 2018–2022, added up: 1,948 of 2,610 families carry an IPC or CPC classification. Shares are of those classified families, and one family can fall in several fields.
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.
- KAWAGUTI & PARTNERS8,394 shared patent families
- GPOJ Patent FirmＧＰＯＪ特許事務所7,245 shared patent families
- Miyoshi Patent8,664 shared patent families
- SUGIMURA & Partners8,804 shared patent families
- Kyowa Patent Law9,083 shared patent families
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Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Shobayashi International Patent and Trademark Office, P.C. 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.