- 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: 77
10-year publication summary
|
1
|
5
|
2
|
5
|
8
|
2
|
5
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA Corporation | 1844 |
9 |
| SAES Getters S.p.A. | 326 |
7 |
| OSRAM GmbH | 2216 |
6 |
| General Electric Company | 13888 |
5 |
| Heraeus Noblelight GmbH | 124 |
5 |
| KLA-Tencor Corporation | 2518 |
5 |
| Excelitas Technologies Corp. | 326 |
3 |
| Gigaphoton Inc. | 1323 |
3 |
| Ushio Denki Kabushiki Kaisha | 1205 |
3 |
| Zed Ziegler Electronic Devices GmbH | 3 |
3 |
| Bourns, Inc. | 177 |
2 |
| Lucidity Lights, Inc. | 37 |
2 |
| Photoscience Japan Corporation | 23 |
2 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 302 |
2 |
| Samsung Electronics Co., Ltd. | 157557 |
1 |
| Canon Inc. | 43768 |
1 |
| Panasonic Corporation | 19060 |
1 |
| Applied Materials, Inc. | 20363 |
1 |
| Infineon Technologies AG | 8400 |
1 |
| Massachusetts Institute of Technology | 10239 |
1 |
| Other owners | 14 |