- All sections
- A - Human necessities
- A47L - Domestic washing or cleaning; suction cleaners in general
- A47L 9/20 - Means for cleaning filters
Patent holdings for IPC class A47L 9/20
Total number of patents in this class: 478
10-year publication summary
20
|
33
|
32
|
34
|
36
|
43
|
47
|
37
|
42
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Omachron Intellectual Property Inc. | 869 |
49 |
LG Electronics Inc. | 69257 |
45 |
Dyson Technology Limited | 3124 |
30 |
Hilti Aktiengesellschaft | 3227 |
27 |
Alfred Kärcher GmbH & Co. KG | 398 |
23 |
BISSELL Inc. | 1064 |
21 |
Samsung Electronics Co., Ltd. | 131630 |
17 |
Bissel Inc. | 358 |
16 |
Aktiebolaget Electrolux | 758 |
12 |
Husqvarna AB | 2824 |
12 |
Sharkninja Operating LLC | 1968 |
12 |
Alfred Kärcher SE & Co. KG | 547 |
12 |
Conrad in Trust, Wayne | 96 |
8 |
Kingclean Electric Co., Ltd. | 111 |
7 |
Black & Decker, Inc. | 2402 |
6 |
Nilfisk A/S | 153 |
6 |
Sharp Kabushiki Kaisha | 18957 |
6 |
G.b.d. Corp. | 47 |
5 |
Jiangsu Midea Cleaning Appliances Co., Ltd. | 231 |
5 |
Toshiba Lifestyle Products & Services Corporation | 274 |
5 |
Other owners | 154 |