- 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: 1151
10-year publication summary
|
138
|
176
|
163
|
137
|
124
|
130
|
110
|
81
|
107
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 514 |
123 |
| Dreamwell, Ltd. | 396 |
28 |
| Dewertokin GmbH | 76 |
17 |
| Dewertokin Technology Group Co., Ltd. | 186 |
17 |
| L & P Property Management Company | 962 |
15 |
| Paramount Bed Co., Ltd. | 241 |
15 |
| Hill-Rom Services, Inc. | 1122 |
12 |
| Purple Innovation, LLC | 323 |
12 |
| Stryker Corporation | 4462 |
11 |
| Select Comfort Corporation | 21 |
11 |
| Tempur World, LLC | 224 |
11 |
| Kickball Concepts, LLC | 47 |
10 |
| La-Z-Boy Incorporated | 297 |
10 |
| Tietex International Ltd. | 56 |
10 |
| LG Electronics Inc. | 71039 |
9 |
| Nintendo Co., Ltd. | 3059 |
9 |
| Lear Corporation | 1229 |
9 |
| Levitation Sciences LLC | 81 |
9 |
| Sleep Solutions, Inc. | 76 |
9 |
| Ascion, LLC | 49 |
8 |
| Other owners | 796 |