- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 11/00 - Roof covering, as far as not restricted to features covered by only one of groups Roof covering in ways not provided for by groups
Patent holdings for IPC class E04D 11/00
Total number of patents in this class: 178
10-year publication summary
|
27
|
12
|
10
|
20
|
22
|
16
|
11
|
27
|
16
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bmic LLC | 805 |
10 |
| Mbrico, LLC | 21 |
7 |
| Hanover Prest - Paving Company | 71 |
5 |
| Permavoid Limited | 34 |
4 |
| Zynnovation LLC | 14 |
4 |
| Dow Global Technologies LLC | 10930 |
3 |
| Hortech, Inc. | 182 |
3 |
| Rockwool A/S | 833 |
3 |
| Green Roof Specialty Products LLC | 7 |
3 |
| Amrize Technology Switzerland LLC | 717 |
3 |
| A.B.G. Limited | 8 |
2 |
| Carl Freudenberg KG | 1486 |
2 |
| The Garland Company, Inc. | 112 |
2 |
| Isola AS | 12 |
2 |
| J. Van Walraven Holding B.V. | 157 |
2 |
| Johns Manville | 920 |
2 |
| Thomas & Betts International LLC | 376 |
2 |
| UniRac, Inc. | 445 |
2 |
| Watershed Geosynthetics LLC | 119 |
2 |
| ZinniaTek Limited | 51 |
2 |
| Other owners | 113 |