- All sections
- H - Electricity
- H01K - Electric incandescent lamps
- H01K 1/50 - Selection of substances for gas fillingsSpecified pressure thereof
Patent holdings for IPC class H01K 1/50
Total number of patents in this class: 7
10-year publication summary
|
3
|
0
|
0
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips Electronics N.V. | 7243 |
2 |
| Philips Intellectual Property & Standards GmbH | 1590 |
2 |
| Halliburton Energy Services, Inc. | 21296 |
1 |
| OSRAM GmbH | 2191 |
1 |
| Jialong High-Tech Industrial Co., Ltd | 2 |
1 |
| Other owners | 0 |