- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 9/00 - Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
Patent holdings for IPC class E04B 9/00
Total number of patents in this class: 899
10-year publication summary
|
65
|
77
|
100
|
83
|
117
|
100
|
78
|
85
|
48
|
17
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 324 |
59 |
| AFI Licensing LLC | 204 |
40 |
| Armstrong World Industries, Inc. | 347 |
38 |
| Worthington Armstrong Venture | 110 |
29 |
| Saint-Gobain Ecophon AB | 156 |
22 |
| Signify Holding B.V. | 6837 |
17 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
17 |
| Rockwool A/S | 753 |
16 |
| Certainteed Canada, Inc. | 57 |
15 |
| Knauf Gips KG | 534 |
15 |
| ASC Engineered Solutions, LLC | 278 |
15 |
| Jlc-tech IP LLC | 26 |
12 |
| Turf Design, Inc. | 31 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| Axis Lighting Inc. | 98 |
8 |
| CertainTeed Ceilings Corporation | 101 |
8 |
| USG Interiors, Inc. | 54 |
8 |
| ROCKWOOL International A/S | 323 |
8 |
| Arktura, LLC | 123 |
7 |
| Eleda S.r.l. | 27 |
7 |
| Other owners | 536 |