- 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: 931
10-year publication summary
|
100
|
83
|
117
|
100
|
78
|
88
|
57
|
55
|
50
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 316 |
59 |
| AFI Licensing LLC | 236 |
48 |
| Armstrong World Industries, Inc. | 366 |
37 |
| Worthington Armstrong Venture | 118 |
26 |
| Saint-Gobain Ecophon AB | 185 |
23 |
| Turf Design, Inc. | 51 |
20 |
| Signify Holding B.V. | 7925 |
20 |
| Knauf Gips KG | 635 |
17 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
17 |
| Rockwool A/S | 825 |
16 |
| Certainteed Canada, Inc. | 58 |
15 |
| ASC Engineered Solutions, LLC | 325 |
15 |
| Jlc-tech IP LLC | 27 |
12 |
| CertainTeed Ceilings Corporation | 106 |
11 |
| Fusion Optix, Inc. | 62 |
11 |
| Arktura, LLC | 157 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33812 |
9 |
| Hubbell Incorporated | 3423 |
8 |
| Innovative Building Technologies, LLC | 64 |
8 |
| Axis Lighting Inc. | 75 |
7 |
| Other owners | 542 |