- All sections
- E - Fixed constructions
- E04D - Roof coverings; sky-lights; gutters; roof-working tools
- E04D 3/40 - Slabs or sheets locally modified for auxiliary purposes, e.g. for resting on walls, for serving as guttering; Elements for particular purposes, e.g. ridge elements, specially designed for use in conjunction with slabs or sheets
Patent holdings for IPC class E04D 3/40
Total number of patents in this class: 74
10-year publication summary
|
8
|
6
|
10
|
5
|
6
|
8
|
8
|
4
|
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 |
7 |
| Kbfx LLC | 7 |
3 |
| Kaneka Corporation | 4445 |
2 |
| Canplas Industries Ltd. | 95 |
2 |
| Garland Industries, Inc. | 84 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Owens Corning Intellectual Capital, LLC | 1456 |
2 |
| Sekisui House, Ltd. | 143 |
2 |
| Siplast, Inc. | 47 |
2 |
| SolarCity Corporation | 82 |
2 |
| Takashima Co., Ltd. | 10 |
2 |
| BÖRJESSON, Tomas | 2 |
2 |
| Metal-era, LLC | 41 |
2 |
| a & a Material Corporation | 4 |
1 |
| Air Vent, Inc. | 48 |
1 |
| BlueScope Steel Limited | 223 |
1 |
| CertainTeed Corporation | 299 |
1 |
| Freudenberg Performance Materials LP | 16 |
1 |
| Fuji Electric Systems Co., Ltd. | 89 |
1 |
| Hibco Plastics, Inc. | 6 |
1 |
| Other owners | 35 |