- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/40 - Devices for influencing the colour or wavelength of the light by light-filtersDevices for influencing the colour or wavelength of the light by coloured coatings in or on the envelope
Patent holdings for IPC class H01J 61/40
Total number of patents in this class: 116
10-year publication summary
|
6
|
0
|
7
|
2
|
4
|
2
|
21
|
5
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ushio Denki Kabushiki Kaisha | 1172 |
10 |
| Lumenlabs, LLC | 29 |
9 |
| Koninklijke Philips Electronics N.V. | 10060 |
8 |
| General Electric Company | 13823 |
6 |
| Philips Intellectual Property & Standards GmbH | 1989 |
5 |
| Xenex Disinfection Services Inc. | 88 |
5 |
| OSRAM GmbH | 2389 |
4 |
| 3m Innovative Properties Company | 17842 |
3 |
| Savant Technologies, LLC | 316 |
3 |
| Signify Holding B.V. | 7407 |
3 |
| KLA Corporation | 1503 |
3 |
| Langsim Optoelectronic Technologies (Guangdong) Limited | 7 |
3 |
| Samsung Display Co., Ltd. | 34170 |
2 |
| ASML Netherlands B.V. | 7301 |
2 |
| Excelitas Technologies Corp. | 293 |
2 |
| Express Imaging Systems, LLC | 96 |
2 |
| LightLab Sweden AB | 39 |
2 |
| Samsung Electronics Co., Ltd. | 143812 |
1 |
| The Boeing Company | 19994 |
1 |
| Honeywell International Inc. | 13557 |
1 |
| Other owners | 41 |