- 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: 399
10-year publication summary
|
24
|
38
|
38
|
51
|
39
|
30
|
28
|
15
|
27
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75694 |
31 |
| Kyocera Corporation | 14359 |
30 |
| NGK Insulators, Ltd. | 5236 |
29 |
| BSH Bosch und Siemens Hausgerate GmbH | 2476 |
27 |
| Eurokera S.N.C. | 154 |
24 |
| Haier US Appliance Solutions, Inc. | 4033 |
21 |
| Whirlpool Corporation | 4643 |
18 |
| SCHOTT AG | 1738 |
17 |
| BSH Hausgeräte GmbH | 5624 |
11 |
| NGK Spark Plug Co., Ltd. | 875 |
9 |
| Toto Ltd. | 1259 |
9 |
| Samsung Electronics Co., Ltd. | 157719 |
6 |
| Arcelik A.S. | 3369 |
6 |
| E.G.O. Elektro-Geraetebau GmbH | 143 |
6 |
| E.G.O. Elektro-geratebau GmbH | 128 |
6 |
| Tokyo Electron Limited | 13807 |
5 |
| Electrolux Home Products Corporation N.V. | 660 |
5 |
| NHK Spring Co., Ltd. | 1983 |
5 |
| Niterra Co., Ltd. | 1401 |
5 |
| Sumitomo Electric Industries, Ltd. | 16331 |
4 |
| Other owners | 125 |