- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation 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: 617
10-year publication summary
|
41
|
48
|
49
|
62
|
70
|
39
|
44
|
53
|
34
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Armstrong World Industries, Inc. | 351 |
35 |
| FUJIFILM Corporation | 29839 |
30 |
| AFI Licensing LLC | 235 |
18 |
| CertainTeed Gypsum, Inc. | 213 |
18 |
| USG Interiors, LLC | 310 |
18 |
| Knauf Gips KG | 618 |
15 |
| Pacific Coast Building Products, Inc. | 121 |
12 |
| Gold Bond Building Products, LLC | 207 |
12 |
| Eleda S.r.l. | 31 |
10 |
| Mitsubishi Chemical Corporation | 4612 |
9 |
| Saint-Gobain Ecophon AB | 182 |
8 |
| Rockwool A/S | 807 |
8 |
| 3m Innovative Properties Company | 17719 |
7 |
| CertainTeed Ceilings Corporation | 107 |
7 |
| Louisiana-Pacific Corporation | 284 |
7 |
| Saint-Gobain Placo | 244 |
6 |
| Shizuka Co., Ltd. | 11 |
6 |
| Yoshino Gypsum Co., Ltd. | 254 |
6 |
| Saint-Gobain Isover | 624 |
5 |
| Saint-Gobain Placo SAS | 158 |
5 |
| Other owners | 375 |