- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 11/02 - Built-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
Patent holdings for IPC class E04D 11/02
Total number of patents in this class: 248
10-year publication summary
|
18
|
24
|
16
|
28
|
21
|
26
|
25
|
22
|
25
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Holcim Technology Ltd. | 778 |
31 |
| Bmic LLC | 755 |
20 |
| Johns Manville | 956 |
10 |
| Sika Technology AG | 2875 |
7 |
| Rockwool A/S | 793 |
7 |
| Georgia-Pacific Gypsum LLC | 215 |
5 |
| Carlisle Intangible Company | 45 |
5 |
| Jiangsu Canlon Building Materials Co., Ltd. | 84 |
5 |
| Continuus Materials Intellectual Property, LLC | 46 |
5 |
| Milliken & Company | 1191 |
4 |
| Pittsburgh Corning Europe NV | 27 |
4 |
| U.S. Silica Company | 107 |
4 |
| Vaproshield, LLC | 72 |
4 |
| Carlisle Construction Materials, LLC | 139 |
4 |
| Dow Silicones Corporation | 1958 |
4 |
| CertainTeed Corporation | 244 |
3 |
| United States Gypsum Company | 905 |
3 |
| Vada, LLC | 11 |
3 |
| Carlisle Intangible, LLC | 70 |
3 |
| ROCKWOOL International A/S | 304 |
3 |
| Other owners | 114 |