- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 1/86 - Sound-absorbing elements slab-shaped
Patent holdings for IPC class E04B 1/86
Total number of patents in this class: 576
10-year publication summary
|
53
|
43
|
55
|
49
|
70
|
81
|
48
|
52
|
53
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
30 |
| Armstrong World Industries, Inc. | 347 |
24 |
| USG Interiors, LLC | 324 |
17 |
| CertainTeed Gypsum, Inc. | 180 |
16 |
| Knauf Gips KG | 534 |
15 |
| AFI Licensing LLC | 204 |
14 |
| Pacific Coast Building Products, Inc. | 130 |
13 |
| Gold Bond Building Products, LLC | 162 |
12 |
| Eleda S.r.l. | 27 |
9 |
| 3m Innovative Properties Company | 18406 |
8 |
| Mitsubishi Chemical Corporation | 4313 |
8 |
| Yoshino Gypsum Co., Ltd. | 224 |
8 |
| Saint-Gobain Ecophon AB | 156 |
7 |
| CertainTeed Ceilings Corporation | 101 |
6 |
| Saint-Gobain Placo | 176 |
6 |
| Shizuka Co., Ltd. | 12 |
6 |
| Certainteed Canada, Inc. | 57 |
5 |
| Saint-Gobain Isover | 603 |
5 |
| Saint-Gobain Placo SAS | 139 |
5 |
| United States Gypsum Company | 1019 |
5 |
| Other owners | 357 |