- All sections
- A - Human necessities
- A47L - Domestic washing or cleaning; suction cleaners in general
- A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
Patent holdings for IPC class A47L 9/28
Total number of patents in this class: 3694
10-year publication summary
|
139
|
179
|
239
|
387
|
414
|
436
|
483
|
491
|
431
|
427
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 68759 |
829 |
| Samsung Electronics Co., Ltd. | 127539 |
325 |
| iRobot Corporation | 964 |
193 |
| Omachron Intellectual Property Inc. | 835 |
181 |
| Dyson Technology Limited | 2957 |
103 |
| Sharp Kabushiki Kaisha | 18912 |
88 |
| Toshiba Lifestyle Products & Services Corporation | 286 |
86 |
| Vorwerk & Co. Interholding GmbH | 477 |
83 |
| Panasonic Intellectual Property Management Co., Ltd. | 28211 |
70 |
| Sharkninja Operating LLC | 1860 |
70 |
| Techtronic Floor Care Technology Limited | 357 |
68 |
| Aktiebolaget Electrolux | 769 |
62 |
| Makita Corporation | 2282 |
59 |
| BISSELL Inc. | 1049 |
58 |
| Jiangsu Midea Cleaning Appliances Co., Ltd. | 228 |
45 |
| Emerson Electric Co. | 652 |
34 |
| Mitsubishi Electric Corporation | 43174 |
30 |
| Black & Decker, Inc. | 2428 |
28 |
| Alfred Kärcher SE & Co. KG | 530 |
24 |
| Alfred Kärcher GmbH & Co. KG | 403 |
23 |
| Other owners | 1235 |