- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 65/04 - Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating
Patent holdings for IPC class H01J 65/04
Total number of patents in this class: 425
10-year publication summary
|
34
|
32
|
22
|
23
|
17
|
18
|
25
|
26
|
20
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ceravision Limited | 45 |
35 |
| KLA-Tencor Corporation | 2550 |
32 |
| Koninklijke Philips Electronics N.V. | 10844 |
20 |
| OSRAM GmbH | 2412 |
20 |
| Excelitas Technologies Corp. | 302 |
19 |
| Hamamatsu Photonics K.K. | 4304 |
17 |
| KLA Corporation | 1402 |
17 |
| Ushio Denki Kabushiki Kaisha | 1141 |
14 |
| ASML Netherlands B.V. | 7171 |
13 |
| Philips Intellectual Property & Standards GmbH | 2112 |
13 |
| Energetiq Technology, Inc. | 42 |
9 |
| Samsung Electronics Co., Ltd. | 139001 |
6 |
| Nordson Corporation | 1212 |
6 |
| Consiglio Nazionale delle Ricerche | 546 |
5 |
| Heraeus Noblelight GmbH | 176 |
5 |
| Lumartix SA | 5 |
5 |
| Saint-Gobain Glass France | 3788 |
5 |
| Ampliqa, Inc. | 6 |
5 |
| Signify Holding B.V. | 7237 |
5 |
| Matsushita Electric Works, Ltd. | 179 |
4 |
| Other owners | 170 |