- All sections
- E - Fixed constructions
- E04D - Roof coverings; sky-lights; gutters; roof-working tools
- E04D 3/36 - Connecting; Fastening
Patent holdings for IPC class E04D 3/36
Total number of patents in this class: 214
10-year publication summary
|
18
|
22
|
25
|
23
|
34
|
18
|
27
|
9
|
24
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bmic LLC | 630 |
11 |
| BlueScope Buildings North America, Inc. | 76 |
8 |
| BlueScope Steel Limited | 223 |
7 |
| Building Materials Investment Corporation | 158 |
5 |
| Holcim Technology Ltd. | 868 |
4 |
| Nucor Corporation | 425 |
4 |
| SFS intec Holding AG | 128 |
4 |
| Southeastern Metals Manufacturing Company, Inc. | 27 |
4 |
| Deutsche Rockwool Mineralwoll GmbH & Co. OHG | 48 |
3 |
| EJOT Baubefestigungen GmbH | 35 |
3 |
| Garland Industries, Inc. | 84 |
3 |
| Simpson Strong-Tie Company, Inc. | 583 |
3 |
| Vermont Slate & Copper Services, Inc. | 14 |
3 |
| Illinois Tool Works Inc. | 11152 |
2 |
| CertainTeed Corporation | 299 |
2 |
| FibreCem Holding AG | 3 |
2 |
| ITW Australia Pty Ltd | 6 |
2 |
| Loadmaster Systems, Inc. | 3 |
2 |
| Louisiana-Pacific Corporation | 203 |
2 |
| Marshall, Joseph T. | 5 |
2 |
| Other owners | 138 |