- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 9/30 - CeilingsConstruction of ceilings, e.g. false ceilingsCeiling construction with regard to insulation characterised by edge details of the ceiling, e.g. securing to an adjacent wall
Patent holdings for IPC class E04B 9/30
Total number of patents in this class: 166
10-year publication summary
|
20
|
20
|
30
|
21
|
11
|
11
|
8
|
5
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 312 |
30 |
| Normalu | 135 |
24 |
| AFI Licensing LLC | 233 |
12 |
| Worthington Armstrong Venture | 117 |
11 |
| Normalu SAS | 19 |
7 |
| Armstrong World Industries, Inc. | 350 |
5 |
| Rockwool A/S | 815 |
5 |
| Kvadrat Soft Cells A/S | 16 |
5 |
| Kvadrat Acoustics A/S | 6 |
5 |
| CertainTeed Ceilings Corporation | 106 |
4 |
| Knauf Gips KG | 624 |
3 |
| Clipso Productions | 10 |
3 |
| Newmat, SA | 4 |
2 |
| Renson Sunprotection-Screens NV | 43 |
2 |
| Saint-Gobain Ecophon AB | 183 |
2 |
| Studform Pty Ltd | 5 |
2 |
| United States Gypsum Company | 900 |
2 |
| USG Interiors, Inc. | 43 |
2 |
| ROCKWOOL International A/S | 296 |
2 |
| Falkbuilt Ltd. | 14 |
2 |
| Other owners | 36 |