- All sections
- A - Human necessities
- A47L - Domestic washing or cleaningsuction cleaners in general
- A47L 11/28 - Floor-scrubbing machines, motor-driven
Patent holdings for IPC class A47L 11/28
Total number of patents in this class: 519
10-year publication summary
|
15
|
26
|
35
|
42
|
49
|
81
|
94
|
56
|
66
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Beijing Roborock Technology Co., Ltd. | 1014 |
41 |
| iRobot Corporation | 958 |
37 |
| Positec Power Tools (Suzhou) Co., Ltd. | 752 |
22 |
| Midea Robozone Technology Co., Ltd. | 193 |
17 |
| Dreame Innovation Technology (Suzhou) Co., Ltd. | 326 |
15 |
| Shenzhen silver star intelligent group co., ltd. | 98 |
13 |
| Beijing Roborock Innovation Technology Co., Ltd. | 220 |
12 |
| Ecovacs Robotics Co., Ltd. | 412 |
11 |
| Shenzhen Rock Times Technology Co., Ltd. | 22 |
11 |
| Yunjing Intelligence (Shenzhen) Co., Ltd. | 105 |
11 |
| LG Electronics Inc. | 74968 |
10 |
| Qfeeltech (Beijing) CO., Ltd. | 80 |
10 |
| BISSELL Inc. | 1142 |
9 |
| Sharkninja Operating LLC | 2612 |
9 |
| Yunjing Intelligence Technology (Dongguan) Co., Ltd. | 78 |
9 |
| Shenzhen Silver Star Intelligent Technology Co., Ltd. | 46 |
8 |
| Tennant Company | 263 |
8 |
| Wuxi Little Swan Electric Co., Ltd. | 517 |
8 |
| Yunjing Intelligence Innovation (Shenzhen) Co., Ltd. | 126 |
8 |
| Positec Power Tools (Suzhou) Co., Ltd. (non-small entity) | 208 |
7 |
| Other owners | 243 |