- All sections
- E - Fixed constructions
- E04D - Roof coverings; sky-lights; gutters; roof-working tools
- E04D 3/00 - Roof covering by making use of flat or curved slabs or stiff sheets
Patent holdings for IPC class E04D 3/00
Total number of patents in this class: 29
10-year publication summary
|
1
|
0
|
5
|
1
|
3
|
3
|
3
|
0
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tomm Tech Pty Ltd | 9 |
3 |
| Elk Premium Building Products, Inc. | 29 |
2 |
| Verco Decking, Inc. | 30 |
2 |
| Wutpool, Inc. | 10 |
2 |
| L2u Group Pty Ltd | 5 |
2 |
| Bmic LLC | 630 |
2 |
| Building Materials Investment Corporation | 158 |
1 |
| DaVinci Roofscapes, L.L.C. | 16 |
1 |
| Holcim Technology Ltd. | 868 |
1 |
| Jushi Group Co., Ltd. | 113 |
1 |
| Keiwa Inc. | 150 |
1 |
| Nisshin Steel Co., Ltd. | 401 |
1 |
| SK Kaken Co., Ltd. | 22 |
1 |
| Tectusol Inc. | 1 |
1 |
| Tronox LLC | 177 |
1 |
| W.R. Grace & Co.-conn. | 372 |
1 |
| Hysogeo Clean Energies, S.L. | 2 |
1 |
| F H S Roofing Limited | 1 |
1 |
| Industrias Fibraforte S.A. | 1 |
1 |
| Murai Chemical Pack Co., Ltd. | 1 |
1 |
| Other owners | 2 |