- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
Patent holdings for IPC class H05B 41/24
Total number of patents in this class: 324
10-year publication summary
|
18
|
6
|
6
|
6
|
3
|
2
|
3
|
1
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18525 |
26 |
| Panasonic Electric Works Co., Ltd. | 651 |
25 |
| Panasonic Corporation | 18951 |
19 |
| Ushio Denki Kabushiki Kaisha | 1209 |
18 |
| Sanken Electric Co., Ltd. | 454 |
15 |
| Iwasaki Electric Co., Ltd. | 156 |
13 |
| Signify Holding B.V. | 8083 |
10 |
| Seiko Epson Corporation | 20288 |
8 |
| Mitsubishi Electric Corporation | 48097 |
7 |
| Koninklijke Philips Electronics N.V. | 7357 |
6 |
| ABL IP Holding LLC | 1887 |
6 |
| NEC Display Solutions, Ltd. | 772 |
6 |
| Delta Electronics, Inc. | 2838 |
5 |
| Nordson Corporation | 1206 |
5 |
| Ampliqa, Inc. | 6 |
5 |
| Murata Manufacturing Co., Ltd. | 25776 |
4 |
| OSRAM GmbH | 2203 |
3 |
| OSRAM SYLVANIA Inc. | 628 |
3 |
| Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KG | 35 |
3 |
| Harison Toshiba Lighting Corp. | 27 |
3 |
| Other owners | 134 |