- All sections
- A - Human necessities
- A47C - Chairssofasbeds
- A47C 31/00 - Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
Patent holdings for IPC class A47C 31/00
Total number of patents in this class: 1182
10-year publication summary
|
163
|
147
|
120
|
112
|
127
|
99
|
80
|
113
|
73
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 573 |
144 |
| Dreamwell, Ltd. | 409 |
28 |
| Dewertokin Technology Group Co., Ltd. | 200 |
19 |
| Dewertokin GmbH | 77 |
17 |
| Paramount Bed Co., Ltd. | 256 |
17 |
| Purple Innovation, LLC | 394 |
16 |
| L & P Property Management Company | 930 |
15 |
| Hill-Rom Services, Inc. | 1146 |
12 |
| Tempur World, LLC | 221 |
12 |
| Stryker Corporation | 5201 |
11 |
| Select Comfort Corporation | 20 |
11 |
| Sleep Solutions, Inc. | 83 |
11 |
| Precision Textiles LLC | 21 |
11 |
| LG Electronics Inc. | 74447 |
10 |
| Nintendo Co., Ltd. | 3177 |
10 |
| Kickball Concepts, LLC | 42 |
10 |
| Tietex International Ltd. | 57 |
10 |
| Lear Corporation | 1340 |
9 |
| Levitation Sciences LLC | 75 |
9 |
| Steelcase Inc. | 1304 |
9 |
| Other owners | 791 |