- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 9/00 - CeilingsConstruction of ceilings, e.g. false ceilingsCeiling construction with regard to insulation
Patent holdings for IPC class E04B 9/00
Total number of patents in this class: 917
10-year publication summary
|
77
|
100
|
83
|
117
|
100
|
78
|
88
|
53
|
50
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 309 |
59 |
| AFI Licensing LLC | 224 |
46 |
| Armstrong World Industries, Inc. | 350 |
34 |
| Worthington Armstrong Venture | 113 |
27 |
| Saint-Gobain Ecophon AB | 174 |
22 |
| Signify Holding B.V. | 7407 |
18 |
| Knauf Gips KG | 583 |
17 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
17 |
| Rockwool A/S | 778 |
16 |
| Turf Design, Inc. | 35 |
16 |
| ASC Engineered Solutions, LLC | 296 |
15 |
| Certainteed Canada, Inc. | 56 |
14 |
| Jlc-tech IP LLC | 26 |
12 |
| CertainTeed Ceilings Corporation | 103 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 30903 |
10 |
| Fusion Optix, Inc. | 85 |
9 |
| Arktura, LLC | 143 |
8 |
| Axis Lighting Inc. | 79 |
8 |
| ROCKWOOL International A/S | 307 |
8 |
| Hubbell Incorporated | 3227 |
7 |
| Other owners | 543 |