- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 9/18 - Means for suspending the supporting construction
Patent holdings for IPC class E04B 9/18
Total number of patents in this class: 306
10-year publication summary
|
25
|
25
|
19
|
51
|
35
|
26
|
29
|
24
|
21
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AFI Licensing LLC | 232 |
24 |
| USG Interiors, LLC | 308 |
17 |
| Worthington Armstrong Venture | 113 |
17 |
| Saint-Gobain Ecophon AB | 180 |
15 |
| Gripple Limited | 242 |
12 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
12 |
| CertainTeed Ceilings Corporation | 105 |
10 |
| Fusion Optix, Inc. | 88 |
7 |
| Hilti Aktiengesellschaft | 3515 |
6 |
| Knauf Gips KG | 609 |
6 |
| Mitek Holdings, Inc. | 252 |
6 |
| Rockwool A/S | 796 |
5 |
| Hubbell Incorporated | 3316 |
4 |
| Armstrong World Industries, Inc. | 351 |
4 |
| USG Interiors, Inc. | 47 |
4 |
| Akoustos AB | 7 |
3 |
| Saint-Gobain Isover | 644 |
3 |
| Saint-Gobain Placo | 234 |
3 |
| Yoshino Gypsum Co., Ltd. | 254 |
3 |
| Brandon C. Winn | 6 |
3 |
| Other owners | 142 |