- All sections
- A - Human necessities
- A47L - Domestic washing or cleaningsuction cleaners in general
- A47L 3/00 - Safety devices for use in window-cleaning
Patent holdings for IPC class A47L 3/00
Total number of patents in this class: 21
10-year publication summary
|
2
|
0
|
3
|
1
|
1
|
1
|
0
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecovacs Robotics Co., Ltd. | 398 |
3 |
| Black & Decker, Inc. | 2408 |
1 |
| Honeywell Fall Protection Deutschland GmbH & Co. KG | 14 |
1 |
| Karcher North America, Inc. | 118 |
1 |
| Kyokutoh Co., Ltd. | 70 |
1 |
| Lenovo International Limited | 996 |
1 |
| Poldmaa, Daniel | 2 |
1 |
| Poldmaa, Kathleen | 2 |
1 |
| Poldmaa, Robyn | 2 |
1 |
| Tokyo Ohka Kogyo Co., Ltd. | 1547 |
1 |
| WCM Industries, Inc. | 237 |
1 |
| YKK Corporation of America | 40 |
1 |
| Yoke Industrial Corp. | 98 |
1 |
| Xiamen Huaway IOT Technology Co., Ltd. | 3 |
1 |
| Alfred Kärcher SE & Co. KG | 708 |
1 |
| KUEK, Tin Chai Gilbert | 1 |
1 |
| LU, Ai Gen | 1 |
1 |
| Jimi IP, LLC | 22 |
1 |
| Nanjing Yuqun Communication Technology Co. Ltd. | 30 |
1 |
| Other owners | 0 |