- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 9/34 - Open-work ceilings, e.g. lattice type
Patent holdings for IPC class E04B 9/34
Total number of patents in this class: 117
10-year publication summary
|
12
|
4
|
12
|
9
|
8
|
10
|
7
|
7
|
11
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AFI Licensing LLC | 234 |
23 |
| Armstrong World Industries, Inc. | 348 |
13 |
| Arktura, LLC | 149 |
7 |
| Saint-Gobain Ecophon AB | 183 |
7 |
| USG Interiors, LLC | 312 |
7 |
| CertainTeed Ceilings Corporation | 106 |
5 |
| Eleda S.r.l. | 31 |
4 |
| Turf Design, Inc. | 46 |
4 |
| The Regents of the University of Michigan | 4861 |
3 |
| Gripple Limited | 249 |
3 |
| Worthington Armstrong Venture | 117 |
3 |
| Tomm Tech Pty Ltd | 8 |
3 |
| Signify Holding B.V. | 7814 |
3 |
| Nut Shell LLC | 18 |
2 |
| Rockwool A/S | 814 |
2 |
| Polygrid Pty Ltd | 4 |
2 |
| Koninklijke Philips N.V. | 25421 |
1 |
| 3form, LLC | 196 |
1 |
| AUTEX Industries Limited | 36 |
1 |
| Carl Freudenberg KG | 1417 |
1 |
| Other owners | 22 |