- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/33 - Special shape of cross-section, e.g. for producing cool spot
Patent holdings for IPC class H01J 61/33
Total number of patents in this class: 66
10-year publication summary
|
3
|
6
|
2
|
2
|
1
|
4
|
2
|
2
|
0
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13767 |
8 |
| OSRAM GmbH | 2384 |
7 |
| Excelitas Technologies Corp. | 309 |
7 |
| Koninklijke Philips Electronics N.V. | 9696 |
6 |
| Ushio Denki Kabushiki Kaisha | 1178 |
5 |
| Panasonic Corporation | 20124 |
4 |
| Ceravision Limited | 42 |
3 |
| Philips Intellectual Property & Standards GmbH | 1937 |
3 |
| Kyocera Corporation | 13800 |
2 |
| ASML Netherlands B.V. | 7381 |
2 |
| Lumartix SA | 5 |
2 |
| Shanghai Yaming Lighting Co., Ltd. | 17 |
2 |
| Trojan Technologies Inc. | 51 |
2 |
| Xylem IP Management S.a.r.l. | 34 |
2 |
| Seiko Epson Corporation | 19327 |
1 |
| Koninklijke Philips N.V. | 24766 |
1 |
| NGK Insulators, Ltd. | 4949 |
1 |
| Osram AG | 302 |
1 |
| KLA-Tencor Corporation | 2544 |
1 |
| Shanghai Zhenxin Electronic Engineering Co., Ltd. | 1 |
1 |
| Other owners | 5 |