- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/28 - Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Patent holdings for IPC class H01J 61/28
Total number of patents in this class: 92
10-year publication summary
|
7
|
7
|
1
|
5
|
2
|
5
|
8
|
2
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SAES Getters S.p.A. | 338 |
10 |
| KLA Corporation | 1223 |
8 |
| OSRAM GmbH | 2442 |
7 |
| Heraeus Noblelight GmbH | 233 |
7 |
| General Electric Company | 18133 |
5 |
| KLA-Tencor Corporation | 2574 |
5 |
| Koninklijke Philips Electronics N.V. | 13133 |
4 |
| Excelitas Technologies Corp. | 290 |
3 |
| Gigaphoton Inc. | 1120 |
3 |
| Zed Ziegler Electronic Devices GmbH | 3 |
3 |
| Bourns, Inc. | 171 |
2 |
| Lucidity Lights, Inc. | 39 |
2 |
| Photoscience Japan Corporation | 21 |
2 |
| Ushio Denki Kabushiki Kaisha | 1088 |
2 |
| Signify Holding B.V. | 6837 |
2 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 246 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Canon Inc. | 36841 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Other owners | 21 |