- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 3/74 - Non-metallic plates
Patent holdings for IPC class H05B 3/74
Total number of patents in this class: 381
10-year publication summary
|
20
|
15
|
24
|
38
|
38
|
51
|
37
|
27
|
27
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BSH Bosch und Siemens Hausgerate GmbH | 3236 |
38 |
| Kyocera Corporation | 12735 |
26 |
| NGK Insulators, Ltd. | 4589 |
26 |
| Eurokera S.N.C. | 158 |
26 |
| LG Electronics Inc. | 69257 |
24 |
| SCHOTT AG | 1675 |
19 |
| Haier US Appliance Solutions, Inc. | 3178 |
17 |
| Whirlpool Corporation | 4238 |
15 |
| E.G.O. Elektro-geratebau GmbH | 143 |
14 |
| BSH Hausgeräte GmbH | 5384 |
11 |
| NGK Spark Plug Co., Ltd. | 935 |
9 |
| Tokyo Electron Limited | 11599 |
8 |
| Arcelik A.S. | 3617 |
6 |
| E.G.O. Elektro-Geraetebau GmbH | 123 |
6 |
| Electrolux Home Products Corporation N.V. | 779 |
6 |
| Ceramaspeed Limited | 10 |
5 |
| NHK Spring Co., Ltd. | 1657 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| Backer EHP Inc. | 24 |
4 |
| Hans Heidolph GmbH | 57 |
4 |
| Other owners | 108 |