- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 629
10-year publication summary
|
34
|
50
|
61
|
64
|
65
|
93
|
94
|
69
|
62
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4589 |
33 |
| Canon Inc. | 36841 |
25 |
| Altria Client Services LLC | 1866 |
21 |
| Kyocera Corporation | 12735 |
20 |
| LG Electronics Inc. | 69257 |
18 |
| Denso Corporation | 23338 |
14 |
| Fontem Ventures B.V. | 312 |
14 |
| Lintec Corporation | 1915 |
14 |
| Neturen Co., Ltd. | 193 |
10 |
| Corning Incorporated | 9932 |
8 |
| RAI Strategic Holdings, Inc. | 1026 |
8 |
| MICO Ceramics Ltd. | 42 |
8 |
| KT & G Corporation | 1876 |
7 |
| Shenzhen First Union Technology Co., Ltd. | 611 |
7 |
| Nitto Denko Corporation | 7879 |
6 |
| NGK Spark Plug Co., Ltd. | 935 |
6 |
| Shenzhen Smoore Technology Limited | 1233 |
6 |
| Niterra Co., Ltd. | 1122 |
6 |
| Toyota Motor Corporation | 28582 |
5 |
| NDT Engineering & Aerospace Co. Ltd | 9 |
5 |
| Other owners | 388 |