- All sections
- A - Human necessities
- A47C - Chairs; sofas; beds
- 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: 532
10-year publication summary
|
54
|
56
|
59
|
51
|
83
|
69
|
60
|
75
|
47
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dreamwell, Ltd. | 401 |
45 |
| Sleep Number Corporation | 471 |
19 |
| Purple Innovation, LLC | 308 |
18 |
| Tempur World, LLC | 221 |
17 |
| Bridgestone Corporation | 7067 |
14 |
| L & P Property Management Company | 970 |
11 |
| Sinomax USA Inc. | 67 |
11 |
| Sealy Technology LLC | 364 |
8 |
| Zinus Inc. | 75 |
8 |
| Hill-Rom Services, Inc. | 1115 |
7 |
| King Koil Licensing Company, Inc. | 97 |
7 |
| SKYDEX Technologies, Inc. | 50 |
7 |
| Soft-Tex Group, Inc. | 111 |
7 |
| Casper Sleep Inc. | 66 |
6 |
| TS Tech Co., Ltd. | 1388 |
6 |
| Archem Inc. | 109 |
6 |
| Ahhfactor LLC | 9 |
5 |
| Cascade Designs, Inc. | 115 |
5 |
| INOAC Corporation | 172 |
5 |
| TriplePoint Venture Growth BDC Corp. | 25 |
5 |
| Other owners | 315 |