- 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: 768
10-year publication summary
|
94
|
86
|
84
|
93
|
94
|
105
|
86
|
69
|
67
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sleep Number Corporation | 514 |
91 |
| Dreamwell, Ltd. | 396 |
43 |
| Bedgear LLC | 258 |
39 |
| Hill-Rom Services, Inc. | 1122 |
28 |
| L & P Property Management Company | 962 |
23 |
| Sleep Solutions, Inc. | 76 |
20 |
| Eight Sleep Inc. | 52 |
18 |
| Augustine Temperature Management LLC | 35 |
16 |
| Huntleigh Technology Limited | 136 |
16 |
| LG Electronics Inc. | 71039 |
13 |
| Sealy Technology LLC | 348 |
12 |
| Tempur World, LLC | 224 |
11 |
| Bedjet, LLC | 35 |
10 |
| Bryte, Inc. | 20 |
10 |
| Variowell Development GmbH | 44 |
8 |
| Pure-development 1 B.V. | 20 |
8 |
| CERAGEM Co., Ltd. | 216 |
7 |
| Purple Innovation, LLC | 323 |
7 |
| Stryker Corporation | 4462 |
6 |
| II-VI Delaware, Inc. | 1717 |
6 |
| Other owners | 376 |