- All sections
- E - Fixed constructions
- E06B - Fixed or movable closures for openings in buildings, vehicles, fences, or like enclosures, in general, e.g. doors, windows, blinds, gates
- E06B 9/56 - Operating, guiding or securing devices or arrangements for roll-type closuresSpring drumsTape drumsCounterweighting arrangements therefor
Patent holdings for IPC class E06B 9/56
Total number of patents in this class: 291
10-year publication summary
|
23
|
30
|
24
|
20
|
19
|
12
|
15
|
23
|
8
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hunter Douglas Inc. | 893 |
31 |
| Rytec Corporation | 132 |
11 |
| Maxxmar Inc. | 75 |
8 |
| MechoShade Systems, LLC | 137 |
8 |
| Crestron Electronics Inc. | 706 |
6 |
| Rite-Hite Holding Corporation | 648 |
6 |
| Tachikawa Corporation | 84 |
5 |
| WinTec Korea Inc. | 32 |
5 |
| Lutron Technology Company LLC | 2536 |
5 |
| Automatic Technology (Australia) Pty Ltd | 87 |
4 |
| DYNACO Europe NV | 7 |
4 |
| Hunter Douglas Industries BV | 284 |
4 |
| Cornellcookson, LLC | 182 |
4 |
| Leafy Windoware Co., Ltd. | 33 |
4 |
| Assa Abloy Entrance Systems AB | 527 |
3 |
| Centor Design Pty Ltd | 41 |
3 |
| Dynamic Closures Corporation | 26 |
3 |
| Overhead Door Corporation | 321 |
3 |
| Rollease, Inc. | 12 |
3 |
| Teh Yor Co., Ltd. | 128 |
3 |
| Other owners | 168 |