- All sections
- A - Human necessities
- A47C - Chairssofasbeds
- A47C 21/00 - Attachments for beds, e.g. sheet holders or bed-cover holders Ventilating, cooling or heating means in connection with bedsteads or mattresses
Patent holdings for IPC class A47C 21/00
Total number of patents in this class: 436
10-year publication summary
|
62
|
71
|
59
|
72
|
69
|
59
|
52
|
59
|
50
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 514 |
43 |
| Levitation Sciences LLC | 81 |
25 |
| Dreamwell, Ltd. | 396 |
23 |
| Hill-Rom Services, Inc. | 1122 |
17 |
| L & P Property Management Company | 962 |
13 |
| Eight Sleep Inc. | 52 |
11 |
| Paramount Bed Co., Ltd. | 241 |
8 |
| XSENSOR Technology Corporation | 49 |
7 |
| Keeson Technology Corporation Limited | 119 |
7 |
| NISCO Co., Ltd | 38 |
5 |
| Purple Innovation, LLC | 323 |
5 |
| Dconnect Group LLC | 16 |
5 |
| Dewertokin Technology Group Co., Ltd. | 186 |
5 |
| Ascion, LLC | 49 |
4 |
| Ergomotion, Inc. | 86 |
4 |
| Tempur-Pedic Management, LLC | 48 |
4 |
| TV Bed Limited | 4 |
4 |
| Augustine Temperature Management LLC | 35 |
3 |
| Invacare Corporation | 249 |
3 |
| The Lovesac Company | 185 |
3 |
| Other owners | 237 |