- All sections
- A - Human necessities
- A47C - Chairssofasbeds
- A47C 3/18 - Chairs or stools with rotatable seat
Patent holdings for IPC class A47C 3/18
Total number of patents in this class: 245
10-year publication summary
|
44
|
32
|
31
|
44
|
34
|
28
|
28
|
20
|
19
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Steelcase Inc. | 1334 |
12 |
| Koito Electric Industries, Ltd. | 52 |
9 |
| AMI Industries, Inc. | 214 |
6 |
| InkBed, Inc. | 22 |
6 |
| Kokuyo Co., Ltd. | 214 |
6 |
| CJ 4D Plex Co., Ltd. | 26 |
5 |
| Kintec-Solution GmbH | 40 |
5 |
| B & Z Productions, LLC, DBA CrewChair.com | 11 |
4 |
| Eb-invent GmbH | 12 |
4 |
| Fellowes, Inc. | 347 |
4 |
| Friend Success, Inc. | 10 |
4 |
| Krueger International, Inc. | 372 |
4 |
| TS Tech Co., Ltd. | 1424 |
4 |
| VIA, Inc. | 21 |
4 |
| Ovard, LLC | 16 |
3 |
| Sedus Stoll AG | 212 |
3 |
| Zhejiang Pride Leisure Products Co., Ltd | 25 |
3 |
| Kohler Co. | 3937 |
2 |
| B/E Aerospace, Inc. | 1563 |
2 |
| Dick's Sporting Goods, Inc. | 121 |
2 |
| Other owners | 153 |