- All sections
- H - Electricity
- H01K - Electric incandescent lamps
- H01K 1/22 - Lamp stems
Patent holdings for IPC class H01K 1/22
Total number of patents in this class: 5
10-year publication summary
|
2
|
0
|
2
|
0
|
0
|
0
|
1
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 17 |
1 |
| Dongguan City Minleon Electronics Co., Ltd. | 8 |
1 |
| Heshan Gmy Lighting and Electrical Co., Ltd. | 6 |
1 |
| Iron Horse Patents, LLC | 10 |
1 |
| Shenzhen Ilamp Technology Co.,Ltd | 2 |
1 |
| Other owners | 0 |