- 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: 938
10-year publication summary
|
100
|
83
|
117
|
100
|
78
|
88
|
57
|
56
|
52
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 314 |
60 |
| AFI Licensing LLC | 237 |
48 |
| Armstrong World Industries, Inc. | 369 |
38 |
| Worthington Armstrong Venture | 120 |
26 |
| Saint-Gobain Ecophon AB | 184 |
22 |
| Turf Design, Inc. | 51 |
20 |
| Signify Holding B.V. | 8030 |
20 |
| Knauf Gips KG | 642 |
18 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
17 |
| Rockwool A/S | 833 |
16 |
| Certainteed Canada, Inc. | 56 |
15 |
| ASC Engineered Solutions, LLC | 326 |
15 |
| CertainTeed Ceilings Corporation | 110 |
13 |
| Jlc-tech IP LLC | 27 |
12 |
| Arktura, LLC | 161 |
10 |
| 3LED, Inc. | 89 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
9 |
| Innovative Building Technologies, LLC | 66 |
9 |
| Hubbell Incorporated | 3442 |
8 |
| Axis Lighting Inc. | 66 |
7 |
| Other owners | 545 |