- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 7/20 - Roofs consisting of self-supporting slabs, e.g. able to be loaded
Patent holdings for IPC class E04B 7/20
Total number of patents in this class: 54
10-year publication summary
|
9
|
12
|
9
|
7
|
7
|
2
|
6
|
7
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia-Pacific Gypsum LLC | 216 |
5 |
| J & S Joyce Pty Ltd | 4 |
3 |
| Gregory P. Luth & Associates, Inc. | 12 |
2 |
| Blach Construction Company | 9 |
2 |
| Glavloc Build Systems Limited | 3 |
2 |
| Airbnb, Inc. | 719 |
1 |
| Atomic Design, Inc. | 47 |
1 |
| Clemson University Research Foundation | 164 |
1 |
| Daiwa House Industry Co., Ltd. | 120 |
1 |
| Epic Metals Corporation | 62 |
1 |
| Formula Plastics, Inc. | 1 |
1 |
| Harold Simpson, Inc. | 4 |
1 |
| Huber Engineered Woods LLC | 110 |
1 |
| Kanaflex Corporation | 20 |
1 |
| Loadmaster Systems, Inc. | 3 |
1 |
| Louisiana-Pacific Corporation | 230 |
1 |
| Nippon Steel & Sumikin Coated Sheet Corporation | 17 |
1 |
| Rautaruukki Oyj | 153 |
1 |
| Sekisui House, Ltd. | 160 |
1 |
| Technische Universität Dresden | 561 |
1 |
| Other owners | 25 |