- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 11/038 - Stairways consisting of a plurality of assembled modular parts without further support each modular part having a load-bearing balustrade part
Patent holdings for IPC class E04F 11/038
Total number of patents in this class: 3
10-year publication summary
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
2
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sigma DEK Ltd. | 15 |
1 |
| PERI SE | 385 |
1 |
| Rolf Wee Transport AS | 2 |
1 |
| Other owners | 0 |