- 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: 74
10-year publication summary
|
2
|
3
|
6
|
2
|
2
|
1
|
4
|
2
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips Electronics N.V. | 13133 |
9 |
| General Electric Company | 18133 |
8 |
| OSRAM GmbH | 2442 |
7 |
| Excelitas Technologies Corp. | 290 |
7 |
| Philips Intellectual Property & Standards GmbH | 2395 |
5 |
| Panasonic Corporation | 20786 |
4 |
| Ushio Denki Kabushiki Kaisha | 1088 |
4 |
| Ceravision Limited | 49 |
3 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
2 |
| Kyocera Corporation | 12735 |
2 |
| Lumartix SA | 5 |
2 |
| Shanghai Yaming Lighting Co., Ltd. | 18 |
2 |
| Trojan Technologies Inc. | 60 |
2 |
| Xylem IP Management S.a.r.l. | 37 |
2 |
| Sharp Kabushiki Kaisha | 18957 |
2 |
| Seiko Epson Corporation | 18724 |
1 |
| Koninklijke Philips N.V. | 22975 |
1 |
| ASML Netherlands B.V. | 6816 |
1 |
| NGK Insulators, Ltd. | 4589 |
1 |
| Osram AG | 305 |
1 |
| Other owners | 8 |