- All sections
- A - Human necessities
- A47C - Chairs; sofas; beds
- A47C 21/00 - Attachments for beds, e.g. sheet holders, 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: 421
10-year publication summary
|
47
|
62
|
71
|
59
|
72
|
69
|
57
|
50
|
57
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 471 |
42 |
| Levitation Sciences LLC | 80 |
24 |
| Dreamwell, Ltd. | 401 |
22 |
| Hill-Rom Services, Inc. | 1115 |
17 |
| L & P Property Management Company | 970 |
11 |
| Eight Sleep Inc. | 43 |
9 |
| Paramount Bed Co., Ltd. | 230 |
8 |
| Keeson Technology Corporation Limited | 110 |
8 |
| XSENSOR Technology Corporation | 49 |
7 |
| NISCO Co., Ltd | 35 |
6 |
| Dconnect Group LLC | 14 |
5 |
| Ascion, LLC | 50 |
4 |
| Tempur-Pedic Management, LLC | 58 |
4 |
| Purple Innovation, LLC | 308 |
4 |
| TV Bed Limited | 4 |
4 |
| Dewertokin Technology Group Co., Ltd. | 164 |
4 |
| Augustine Temperature Management LLC | 34 |
3 |
| Ergomotion, Inc. | 85 |
3 |
| Invacare Corporation | 256 |
3 |
| Tranquilo, Inc. | 3 |
3 |
| Other owners | 230 |