- All sections
- A - Human necessities
- A47C - Chairssofasbeds
- A47C 21/04 - Devices for ventilating, cooling or heating
Patent holdings for IPC class A47C 21/04
Total number of patents in this class: 846
10-year publication summary
|
79
|
78
|
82
|
81
|
103
|
82
|
70
|
68
|
64
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 574 |
110 |
| Dreamwell, Ltd. | 408 |
45 |
| Bedgear LLC | 263 |
42 |
| Hill-Rom Services, Inc. | 1147 |
29 |
| Eight Sleep Inc. | 75 |
28 |
| Sleep Solutions, Inc. | 83 |
25 |
| L & P Property Management Company | 929 |
24 |
| Augustine Temperature Management LLC | 35 |
16 |
| Huntleigh Technology Limited | 110 |
16 |
| LG Electronics Inc. | 74373 |
14 |
| Sealy Technology LLC | 354 |
13 |
| CERAGEM Co., Ltd. | 273 |
11 |
| Tempur World, LLC | 220 |
11 |
| Bedjet, LLC | 34 |
10 |
| Variowell Development GmbH | 45 |
9 |
| Pure-development 1 B.V. | 20 |
8 |
| Purple Innovation, LLC | 384 |
8 |
| Stryker Corporation | 5185 |
7 |
| Bryte Labs, Inc. | 14 |
7 |
| II-VI Delaware, Inc. | 1640 |
6 |
| Other owners | 407 |