Arnold & Siedsma
Public patent records for Arnold & Siedsma, 1978–2025: 3,464 patent families shared with other firms for 427 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
- 3,464
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 1,326
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 427
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Arnold & Siedsma · Europe
- 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 | 269 |
| 2018 | 279 |
| 2019 | 304 |
| 2020 | 245 |
| 2021 · preliminary | 238 |
| 2022 · preliminary | 198 |
| 2023 · preliminary | 72 |
| 2024 · preliminary | 38 |
| 2025 · preliminary | 2 |
Technology fields it focuses on
Fields where this firm's share of patent families is well above the average for Europe firms, 2018–2022.
| Field | Share of its families | vs Europe average |
|---|---|---|
| Functional features or details of lighting devices or systems thereof; structural combinations of lighting devices with other articles, not otherwise provided forIPC/CPC F21V | 2.1% | 3.7× |
| Telephonic communicationIPC/CPC H04M | 2.8% | 2.9× |
| Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in generalIPC/CPC H05B | 2.5% | 2.6× |
| Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairingIPC/CPC B29C | 5.3% | 2.4× |
| Containers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers; accessories, closures, or fittings therefor; packaging elements; packagesIPC/CPC B65D | 2.6% | 2.2× |
Yearly counts for 2018–2022, added up: 1,591 of 1,654 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 Europe firms
Yearly counts since 1990, added up. One family can be counted more than once.
- Cohausz & Florack3,324 shared patent families
- Patentanwaltsgesellschaft mbH3,306 shared patent families
- Schoppe, Zimmermann, Stöckeler3,628 shared patent families
- Betten & Resch3,672 shared patent families
- Kuhnen Wacker3,679 shared patent families
Compare Arnold & Siedsma side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Arnold & Siedsma. 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.