- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/26 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
Patent holdings for IPC class H05B 3/26
Total number of patents in this class: 940
10-year publication summary
|
54
|
87
|
77
|
90
|
87
|
92
|
79
|
77
|
100
|
51
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 583 |
38 |
| Altria Client Services LLC | 2197 |
37 |
| Webasto SE | 1166 |
29 |
| NGK Insulators, Ltd. | 4968 |
27 |
| Philip Morris Products S.A. | 7661 |
24 |
| Nicoventures Trading Limited | 3939 |
21 |
| Canon Inc. | 40095 |
17 |
| Lexmark International, Inc. | 1664 |
16 |
| Samsung Electronics Co., Ltd. | 146811 |
13 |
| Lam Research Corporation | 5272 |
13 |
| Dyson Technology Limited | 3653 |
13 |
| Applied Materials, Inc. | 18746 |
11 |
| Kyocera Corporation | 13857 |
11 |
| Valeo Systemes Thermiques | 2733 |
11 |
| Denso Corporation | 24355 |
10 |
| Goodrich Corporation | 2132 |
10 |
| LG Electronics Inc. | 73344 |
9 |
| Hanon Systems | 1958 |
9 |
| Heraeus Noblelight GmbH | 129 |
9 |
| JT International S.A. | 2740 |
9 |
| Other owners | 603 |