- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 21/26 - Implements for finishing work on buildings for mounting staircases, e.g. tools for marking steps
Patent holdings for IPC class E04F 21/26
Total number of patents in this class: 13
10-year publication summary
|
3
|
2
|
1
|
2
|
5
|
1
|
2
|
1
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fortress Iron, LP | 113 |
2 |
| Carolina Stair Supply, Inc. | 12 |
1 |
| Grenier, Gilles | 1 |
1 |
| Halischuk, Cory | 3 |
1 |
| Handicare Stairlifts B.V. | 15 |
1 |
| Hyams, Jonathan | 1 |
1 |
| Jonathan Hyams | 1 |
1 |
| United Kingdom Atomic Energy Authority | 15 |
1 |
| Steijvers Beheer B.V. | 1 |
1 |
| CB Interests Inc. | 22 |
1 |
| Nxgen Homes Pty Ltd | 4 |
1 |
| Shanghai Construction Decoration Engineering Group Co., Ltd | 8 |
1 |
| Other owners | 0 |