- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit 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: 396
10-year publication summary
|
15
|
24
|
38
|
38
|
51
|
39
|
29
|
27
|
15
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BSH Bosch und Siemens Hausgerate GmbH | 2714 |
33 |
| LG Electronics Inc. | 73772 |
29 |
| Kyocera Corporation | 14083 |
28 |
| NGK Insulators, Ltd. | 5144 |
28 |
| Eurokera S.N.C. | 153 |
24 |
| Haier US Appliance Solutions, Inc. | 3787 |
20 |
| SCHOTT AG | 1717 |
18 |
| Whirlpool Corporation | 4462 |
16 |
| BSH Hausgeräte GmbH | 5543 |
11 |
| NGK Spark Plug Co., Ltd. | 888 |
9 |
| Toto Ltd. | 1217 |
7 |
| Tokyo Electron Limited | 13136 |
6 |
| Arcelik A.S. | 3463 |
6 |
| E.G.O. Elektro-Geraetebau GmbH | 142 |
6 |
| E.G.O. Elektro-geratebau GmbH | 124 |
6 |
| Electrolux Home Products Corporation N.V. | 714 |
6 |
| Samsung Electronics Co., Ltd. | 149087 |
5 |
| Ceramaspeed Limited | 9 |
5 |
| NHK Spring Co., Ltd. | 1910 |
5 |
| Niterra Co., Ltd. | 1334 |
5 |
| Other owners | 123 |