- All sections
- A - Human necessities
- A47C - Chairs; sofas; beds
- A47C 21/04 - Devices for ventilating, cooling or heating
Patent holdings for IPC class A47C 21/04
Total number of patents in this class: 745
10-year publication summary
|
86
|
94
|
86
|
84
|
92
|
93
|
105
|
86
|
68
|
28
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 471 |
89 |
| Bedgear LLC | 260 |
40 |
| Dreamwell, Ltd. | 401 |
40 |
| Hill-Rom Services, Inc. | 1115 |
27 |
| L & P Property Management Company | 970 |
22 |
| Huntleigh Technology Limited | 141 |
16 |
| Sleep Solutions, Inc. | 72 |
16 |
| Augustine Temperature Management LLC | 34 |
15 |
| Eight Sleep Inc. | 43 |
15 |
| LG Electronics Inc. | 69257 |
13 |
| Tempur World, LLC | 221 |
11 |
| Bryte, Inc. | 22 |
11 |
| Bedjet, LLC | 35 |
10 |
| Sealy Technology LLC | 364 |
10 |
| Pure-development 1 B.V. | 20 |
8 |
| CERAGEM Co., Ltd. | 187 |
7 |
| Variowell Development GmbH | 41 |
7 |
| Stryker Corporation | 3864 |
6 |
| II-VI Delaware, Inc. | 1720 |
6 |
| Tempur-pedic Management, Inc. | 22 |
6 |
| Other owners | 370 |