- All sections
- A - Human necessities
- A47L - Domestic washing or cleaningsuction cleaners in general
- A47L 4/00 - Cleaning window shades, window screens, venetian blinds
Patent holdings for IPC class A47L 4/00
Total number of patents in this class: 5
10-year publication summary
|
0
|
3
|
1
|
3
|
0
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences | 2163 |
1 |
| Sinituote Oy | 25 |
1 |
| Zhejiang Prulde Electric Appliance Co.,Ltd. | 149 |
1 |
| Hanyu Group Joint-Stock Co., Ltd. | 24 |
1 |
| Shower Shield Limited | 1 |
1 |
| Other owners | 0 |