- 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: 389
10-year publication summary
|
32
|
22
|
23
|
17
|
19
|
25
|
26
|
20
|
11
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ceravision Limited | 42 |
32 |
| KLA-Tencor Corporation | 2523 |
32 |
| Excelitas Technologies Corp. | 322 |
24 |
| OSRAM GmbH | 2261 |
20 |
| KLA Corporation | 1795 |
18 |
| Hamamatsu Photonics K.K. | 4611 |
16 |
| Koninklijke Philips Electronics N.V. | 7895 |
14 |
| Ushio Denki Kabushiki Kaisha | 1208 |
14 |
| ASML Netherlands B.V. | 7770 |
13 |
| Philips Intellectual Property & Standards GmbH | 1702 |
11 |
| Energetiq Technology, Inc. | 49 |
8 |
| Samsung Electronics Co., Ltd. | 154751 |
6 |
| Nordson Corporation | 1197 |
6 |
| Consiglio Nazionale delle Ricerche | 570 |
5 |
| Ampliqa, Inc. | 6 |
5 |
| Signify Holding B.V. | 7915 |
5 |
| Mitsubishi Electric Corporation | 47683 |
4 |
| Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KG | 37 |
4 |
| Lumartix SA | 4 |
4 |
| SICO Technology GmbH | 14 |
4 |
| Other owners | 144 |