- 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: 927
10-year publication summary
|
84
|
78
|
105
|
85
|
67
|
80
|
52
|
51
|
48
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 313 |
58 |
| AFI Licensing LLC | 235 |
48 |
| Armstrong World Industries, Inc. | 352 |
36 |
| Worthington Armstrong Venture | 116 |
26 |
| Saint-Gobain Ecophon AB | 183 |
22 |
| Turf Design, Inc. | 46 |
19 |
| Signify Holding B.V. | 7834 |
18 |
| Knauf Gips KG | 634 |
17 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
17 |
| Rockwool A/S | 815 |
16 |
| Certainteed Canada, Inc. | 59 |
15 |
| ASC Engineered Solutions, LLC | 321 |
15 |
| Jlc-tech IP LLC | 26 |
12 |
| CertainTeed Ceilings Corporation | 107 |
11 |
| Fusion Optix, Inc. | 88 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 33202 |
10 |
| Arktura, LLC | 149 |
9 |
| Hubbell Incorporated | 3380 |
8 |
| ROCKWOOL International A/S | 294 |
8 |
| Axis Lighting Inc. | 76 |
7 |
| Other owners | 544 |