- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 41/18 - Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC having a starting switch
Patent holdings for IPC class H05B 41/18
Total number of patents in this class: 19
10-year publication summary
|
3
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4726 |
2 |
| Vode Lighting LLC | 66 |
2 |
| IGT (International Game Technology) | 6301 |
1 |
| NEC Corporation | 37491 |
1 |
| Panasonic Electric Works Co., Ltd. | 640 |
1 |
| GM Global Technology Operations LLC | 16237 |
1 |
| Osram AG | 286 |
1 |
| Easylumen S.r.l. | 3 |
1 |
| EPtronics, Inc. | 15 |
1 |
| Iwasaki Electric Co., Ltd. | 156 |
1 |
| Luxera, Inc. | 3 |
1 |
| N.V. Nederlandsche Apparatenfabriek NEDAP | 58 |
1 |
| Toshiba Lighting & Technology Corporation | 219 |
1 |
| Universitat Rovira I Virgili | 113 |
1 |
| EchoStar Technologies International Corporation | 79 |
1 |
| Giacomo SRL | 1 |
1 |
| Aurora Operations, Inc. | 1412 |
1 |
| Other owners | 0 |