- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 3/18 - Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of specified materials, or of combinations of materials, not covered by any of groups , or
Patent holdings for IPC class E04D 3/18
Total number of patents in this class: 40
10-year publication summary
|
6
|
5
|
4
|
4
|
2
|
4
|
4
|
1
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bmic LLC | 787 |
5 |
| Amrize Technology Switzerland LLC | 684 |
4 |
| Georgia-Pacific Gypsum LLC | 221 |
3 |
| Holcim Technology Ltd. | 492 |
3 |
| Elk Premium Building Products, Inc. | 23 |
2 |
| SunRun South LLC | 38 |
2 |
| ZinniaTek Limited | 49 |
2 |
| Continuus Materials Intellectual Property, LLC | 50 |
2 |
| 3m Innovative Properties Company | 17589 |
1 |
| Beijing Apollo Ding Rong Solar Technology Co., Ltd. | 188 |
1 |
| CertainTeed Corporation | 220 |
1 |
| Covestro LLC | 595 |
1 |
| Garland Industries, Inc. | 99 |
1 |
| Huber Engineered Woods LLC | 85 |
1 |
| Milliken & Company | 1161 |
1 |
| Carlisle Construction Materials, LLC | 164 |
1 |
| Eternit GmbH | 10 |
1 |
| The Shredded Tire Inc. | 7 |
1 |
| The Square Company Pty Ltd. | 2 |
1 |
| TAMKO Building Products LLC | 146 |
1 |
| Other owners | 5 |