- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 3/22 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
Patent holdings for IPC class H05B 3/22
Total number of patents in this class: 307
10-year publication summary
|
24
|
18
|
35
|
26
|
23
|
36
|
35
|
41
|
57
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Philip Morris Products S.A. | 7282 |
13 |
| Webasto SE | 1124 |
13 |
| JT International S.A. | 2652 |
10 |
| Nicoventures Trading Limited | 3423 |
10 |
| Tokyo Electron Limited | 12090 |
8 |
| RAI Strategic Holdings, Inc. | 1093 |
8 |
| Shenzhen First Union Technology Co., Ltd. | 730 |
7 |
| Shenzhen Smoore Technology Limited | 1451 |
7 |
| Shenzhen Huachengda Precision Industry Co. Ltd | 110 |
7 |
| Applied Materials, Inc. | 17696 |
6 |
| KT & G Corporation | 2326 |
6 |
| Bayerische Motoren Werke Aktiengesellschaft | 13830 |
5 |
| Japan Tobacco Inc. | 3487 |
5 |
| Watlow Electric Manufacturing Company | 575 |
5 |
| Canon Inc. | 38071 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40539 |
4 |
| Goodrich Corporation | 2087 |
4 |
| NGK Insulators, Ltd. | 4791 |
3 |
| BSH Hausgeräte GmbH | 5448 |
3 |
| BSH Home Appliances Corporation | 795 |
3 |
| Other owners | 176 |