- 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: 378
10-year publication summary
|
26
|
18
|
5
|
4
|
6
|
3
|
2
|
3
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18756 |
33 |
| Panasonic Electric Works Co., Ltd. | 717 |
28 |
| Panasonic Corporation | 20085 |
24 |
| Ushio Denki Kabushiki Kaisha | 1186 |
18 |
| Sanken Electric Co., Ltd. | 452 |
16 |
| Iwasaki Electric Co., Ltd. | 151 |
13 |
| Seiko Epson Corporation | 19425 |
11 |
| Signify Holding B.V. | 7585 |
10 |
| Mitsubishi Electric Corporation | 46249 |
9 |
| Matsushita Electric Industrial Co., Ltd. | 1354 |
6 |
| Koninklijke Philips Electronics N.V. | 9495 |
6 |
| ABL IP Holding LLC | 1901 |
6 |
| NEC Display Solutions, Ltd. | 798 |
6 |
| Murata Manufacturing Co., Ltd. | 24621 |
5 |
| Rohm Co., Ltd. | 6468 |
5 |
| Delta Electronics, Inc. | 2620 |
5 |
| OSRAM GmbH | 2382 |
5 |
| Nordson Corporation | 1200 |
5 |
| Ampliqa, Inc. | 6 |
5 |
| Harison Toshiba Lighting Corp. | 34 |
4 |
| Other owners | 158 |