- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 1/99 - Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing sound
Patent holdings for IPC class E04B 1/99
Total number of patents in this class: 123
10-year publication summary
|
18
|
18
|
17
|
14
|
15
|
17
|
9
|
5
|
6
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellation Productions, Inc. | 15 |
7 |
| USG Interiors, LLC | 314 |
7 |
| Turf Design, Inc. | 51 |
7 |
| FUJIFILM Corporation | 30512 |
4 |
| AFI Licensing LLC | 237 |
4 |
| Wenger Corporation | 114 |
4 |
| The Regents of the University of Michigan | 4979 |
3 |
| Armstrong World Industries, Inc. | 369 |
3 |
| Daiwa House Industry Co., Ltd. | 112 |
3 |
| Saint-Gobain Ecophon AB | 184 |
3 |
| CSR Building Products Limited | 46 |
2 |
| Eleda S.r.l. | 31 |
2 |
| HKS, Inc. | 14 |
2 |
| Knauf Gips KG | 642 |
2 |
| Sekisui Chemical Co., Ltd. | 3606 |
2 |
| Tomoegawa Co., Ltd. | 227 |
2 |
| CS Inventions, LLC | 2 |
2 |
| Liaver GmbH & Co.KG | 9 |
2 |
| Gold Bond Building Products, LLC | 195 |
2 |
| Honeywell International Inc. | 12778 |
1 |
| Other owners | 59 |