- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit 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: 394
10-year publication summary
|
18
|
35
|
26
|
23
|
37
|
38
|
39
|
58
|
48
|
49
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nicoventures Trading Limited | 4852 |
21 |
| Philip Morris Products S.A. | 8329 |
16 |
| Webasto SE | 1194 |
13 |
| JT International S.A. | 2913 |
12 |
| RAI Strategic Holdings, Inc. | 1229 |
12 |
| Shenzhen First Union Technology Co., Ltd. | 1028 |
11 |
| Shenzhen Smoore Technology Limited | 1813 |
11 |
| KT & G Corporation | 3173 |
10 |
| Japan Tobacco Inc. | 3576 |
9 |
| Tokyo Electron Limited | 13956 |
8 |
| Watlow Electric Manufacturing Company | 575 |
8 |
| Applied Materials, Inc. | 20601 |
7 |
| Shenzhen Huachengda Precision Industry Co. Ltd | 123 |
6 |
| Canon Inc. | 44414 |
5 |
| NGK Insulators, Ltd. | 5170 |
5 |
| Bayerische Motoren Werke Aktiengesellschaft | 15489 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49027 |
4 |
| Goodrich Corporation | 2181 |
4 |
| Loci Controls, Inc. | 97 |
4 |
| Smoore International Holdings Limited | 126 |
4 |
| Other owners | 219 |