- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 829
10-year publication summary
|
69
|
60
|
88
|
77
|
90
|
92
|
91
|
83
|
75
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 569 |
38 |
| Altria Client Services LLC | 1866 |
28 |
| NGK Insulators, Ltd. | 4589 |
26 |
| Webasto SE | 1025 |
23 |
| Philip Morris Products S.A. | 6751 |
19 |
| Lexmark International, Inc. | 1793 |
17 |
| Canon Inc. | 36841 |
16 |
| Lam Research Corporation | 4775 |
14 |
| Samsung Electronics Co., Ltd. | 131630 |
11 |
| Kyocera Corporation | 12735 |
11 |
| Denso Corporation | 23338 |
10 |
| Applied Materials, Inc. | 16587 |
10 |
| Heraeus Noblelight GmbH | 233 |
10 |
| LG Electronics Inc. | 69257 |
9 |
| Goodrich Corporation | 2081 |
9 |
| Saint-Gobain Glass France | 3641 |
9 |
| Dyson Technology Limited | 3124 |
8 |
| Hanon Systems | 1632 |
8 |
| JT International S.A. | 2449 |
8 |
| LG Chem, Ltd. | 17205 |
7 |
| Other owners | 538 |