- All sections
- A - Human necessities
- A47C - Chairssofasbeds
- A47C 27/15 - Spring, stuffed or fluid mattresses specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
Patent holdings for IPC class A47C 27/15
Total number of patents in this class: 618
10-year publication summary
|
59
|
51
|
83
|
69
|
60
|
79
|
54
|
49
|
57
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dreamwell, Ltd. | 408 |
46 |
| Purple Innovation, LLC | 420 |
29 |
| Sleep Number Corporation | 533 |
24 |
| L & P Property Management Company | 932 |
16 |
| Tempur World, LLC | 212 |
15 |
| Bridgestone Corporation | 7270 |
13 |
| New-Tec Integration (Xiamen) Co., Ltd. | 429 |
12 |
| Sealy Technology LLC | 370 |
11 |
| Ahhfactor LLC | 12 |
8 |
| Hill-Rom Services, Inc. | 1178 |
8 |
| Zinus Inc. | 72 |
8 |
| Bett1.de GmbH | 65 |
8 |
| Archem Inc. | 122 |
8 |
| Sinomax USA Inc. | 70 |
7 |
| SKYDEX Technologies, Inc. | 44 |
7 |
| INOAC Corporation | 235 |
6 |
| TS Tech Co., Ltd. | 1553 |
6 |
| Stryker Corporation | 5724 |
5 |
| Carpenter Co. | 128 |
5 |
| Cascade Designs, Inc. | 124 |
5 |
| Other owners | 371 |