- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 1/24 - Roofing elements with cavities, e.g. hollow tiles
Patent holdings for IPC class E04D 1/24
Total number of patents in this class: 14
10-year publication summary
|
1
|
1
|
2
|
5
|
1
|
3
|
0
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17858 |
3 |
| CertainTeed Corporation | 251 |
2 |
| Nisshin Steel Co., Ltd. | 394 |
2 |
| New York Institute of Technology | 29 |
1 |
| ZinniaTek Limited | 57 |
1 |
| Danfoss A/S | 1353 |
1 |
| Nippon Steel Nisshin Co., Ltd. | 98 |
1 |
| Logic Swiss AG | 3 |
1 |
| Bmic LLC | 724 |
1 |
| Eraserspacer LLC | 1 |
1 |
| Other owners | 0 |