- 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: 386
10-year publication summary
|
32
|
22
|
23
|
17
|
19
|
25
|
26
|
20
|
11
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA-Tencor Corporation | 2518 |
32 |
| Ceravision Limited | 41 |
31 |
| Excelitas Technologies Corp. | 326 |
24 |
| KLA Corporation | 1849 |
20 |
| Hamamatsu Photonics K.K. | 4681 |
17 |
| OSRAM GmbH | 2210 |
15 |
| ASML Netherlands B.V. | 7925 |
14 |
| Ushio Denki Kabushiki Kaisha | 1207 |
14 |
| Koninklijke Philips Electronics N.V. | 7455 |
13 |
| Philips Intellectual Property & Standards GmbH | 1631 |
10 |
| Energetiq Technology, Inc. | 50 |
8 |
| Samsung Electronics Co., Ltd. | 157719 |
6 |
| Nordson Corporation | 1201 |
6 |
| Consiglio Nazionale delle Ricerche | 568 |
5 |
| Lumartix SA | 5 |
5 |
| Ampliqa, Inc. | 6 |
5 |
| Signify Holding B.V. | 8052 |
5 |
| Mitsubishi Electric Corporation | 48018 |
4 |
| Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KG | 35 |
4 |
| SICO Technology GmbH | 14 |
4 |
| Other owners | 144 |