- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/18 - Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Patent holdings for IPC class H01J 61/18
Total number of patents in this class: 21
10-year publication summary
|
2
|
1
|
2
|
0
|
1
|
1
|
1
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
3 |
| Toshiba Lighting & Technology Corporation | 340 |
3 |
| Koninklijke Philips Electronics N.V. | 13133 |
2 |
| Hanovia Limited | 18 |
2 |
| Ushio Denki Kabushiki Kaisha | 1088 |
2 |
| Philips Intellectual Property & Standards GmbH | 2395 |
2 |
| Greg Caldwell Company, LLC | 1 |
1 |
| Iwasaki Electric Co., Ltd. | 151 |
1 |
| Lumileds LLC | 1827 |
1 |
| National Institute of Standards and Technology | 35 |
1 |
| Nordson Corporation | 1246 |
1 |
| Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH | 8 |
1 |
| Cosmo Holdings Co.,Ltd. | 13 |
1 |
| Other owners | 0 |