- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/03 - Electrodes
Patent holdings for IPC class H05B 3/03
Total number of patents in this class: 677
10-year publication summary
|
50
|
61
|
64
|
65
|
93
|
98
|
74
|
63
|
59
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4853 |
34 |
| Canon Inc. | 39005 |
25 |
| Altria Client Services LLC | 2146 |
25 |
| Kyocera Corporation | 13548 |
20 |
| LG Electronics Inc. | 71880 |
18 |
| Denso Corporation | 24007 |
16 |
| Fontem Ventures B.V. | 295 |
15 |
| Lintec Corporation | 1946 |
14 |
| Corning Incorporated | 10146 |
12 |
| Neturen Co., Ltd. | 194 |
10 |
| RAI Strategic Holdings, Inc. | 1116 |
9 |
| KT & G Corporation | 2521 |
8 |
| MICO Ceramics Ltd. | 53 |
8 |
| Shenzhen First Union Technology Co., Ltd. | 787 |
7 |
| Niterra Co., Ltd. | 1227 |
7 |
| NGK Spark Plug Co., Ltd. | 897 |
6 |
| Shenzhen Smoore Technology Limited | 1498 |
6 |
| Sumitomo Heavy Industries, Ltd. | 1842 |
6 |
| Nitto Denko Corporation | 8146 |
5 |
| LG Innotek Co., Ltd. | 7404 |
5 |
| Other owners | 421 |