- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 1/20 - Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface of plastics, fibrous materials, or wood
Patent holdings for IPC class E04D 1/20
Total number of patents in this class: 320
10-year publication summary
|
18
|
25
|
32
|
36
|
31
|
28
|
44
|
31
|
31
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bmic LLC | 785 |
81 |
| Owens Corning Intellectual Capital, LLC | 1640 |
67 |
| CertainTeed LLC | 610 |
33 |
| CertainTeed Corporation | 219 |
13 |
| GAF Energy LLC | 212 |
13 |
| TAMKO Building Products LLC | 146 |
6 |
| Bmrc LLC | 34 |
6 |
| Clair Industrial Development Corporation Ltd., | 12 |
4 |
| Specialty Granules Investments LLC | 47 |
4 |
| ZinniaTek Limited | 50 |
4 |
| Amrize Technology Switzerland LLC | 715 |
4 |
| 3m Innovative Properties Company | 17511 |
3 |
| Louisiana-Pacific Corporation | 295 |
3 |
| POET Research, Inc. | 270 |
3 |
| Rohm and Haas Company | 2937 |
2 |
| Building Materials Investment Corporation | 139 |
2 |
| Close The Loop Technologies Pty Ltd. | 22 |
2 |
| Euroline S.r.l. | 9 |
2 |
| Green IP Box Limited | 3 |
2 |
| Iowa State University Research Foundation, Inc. | 810 |
2 |
| Other owners | 64 |