Po Reru Tokkyo Gyomu Hojin
Public patent records for Po Reru Tokkyo Gyomu Hojin, 1978–2022: 2,425 patent families shared with other firms for 145 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
- 2,425
- 1978–2022. One family can be counted more than once.
- Activity 2016–2020
- 154
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 145
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Po Reru Tokkyo Gyomu Hojin · Japan
- Filing years
- 2017–2022
- 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 | 43 |
| 2018 | 25 |
| 2019 | 18 |
| 2020 | 15 |
| 2022 · 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 |
|---|---|---|
| Investigating or analysing materials by determining their chemical or physical propertiesIPC/CPC G01N | 36.8% | 7.2× |
| Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in generalIPC/CPC C23C | 6.4% | 3.2× |
| Semiconductor devices not covered by class H10IPC/CPC H01L | 16.1% | 2.4× |
Yearly counts for 2018–2022, added up: 503 of 774 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.
- SANKYO INTERNATIONAL PATENT ATTORNEYS OFFICE弁理士法人三協国際特許事務所2,424 shared patent families
- TSUTSUI PATENT OFFICE弁理士法人筒井国際特許事務所2,423 shared patent families
- TRY International IP Law FirmTRY国際弁理士法人2,432 shared patent families
- Sunnext International Patent Office弁理士法人サンネクスト国際特許事務所2,470 shared patent families
- Koho Patent Attorneys高法弁理士法人2,360 shared patent families
Compare Po Reru Tokkyo Gyomu Hojin side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Po Reru Tokkyo Gyomu Hojin. 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.