- 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 |