- All sections
- E - Fixed constructions
- E04D - Roof coverings; sky-lights; gutters; roof-working tools
- E04D 5/02 - Roof covering by making use of flexible material, e.g. supplied in roll form of materials impregnated with sealing substances, e.g. roofing felt
Patent holdings for IPC class E04D 5/02
Total number of patents in this class: 93
10-year publication summary
|
13
|
12
|
7
|
12
|
8
|
13
|
5
|
2
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bmic LLC | 630 |
10 |
| Johns Manville | 980 |
9 |
| POLITEX s.a.s. di FREUDENBERG POLITEX s.r.l. | 16 |
6 |
| CertainTeed LLC | 511 |
6 |
| Owens Corning Intellectual Capital, LLC | 1456 |
5 |
| Boato International S.p.A. a Socio Unico | 8 |
4 |
| Holcim Technology Ltd. | 868 |
3 |
| Onduline | 102 |
3 |
| Building Materials Investment Corporation | 158 |
2 |
| Cargill, Incorporated | 2835 |
2 |
| Gardner-Gibson, Inc. | 135 |
2 |
| Milliken & Company | 1253 |
2 |
| Saint-Gobain Adfors Canada, Ltd. | 68 |
2 |
| Low & Bonar B.V. | 26 |
2 |
| Imperbel | 15 |
2 |
| Basell Poliolefine Italia S.r.l. | 867 |
1 |
| Bitumar Inc. | 12 |
1 |
| CertainTeed Corporation | 299 |
1 |
| Detec Systems LLC | 14 |
1 |
| DuPont (China) Research & Development and Management Co., Ltd. | 6 |
1 |
| Other owners | 28 |