- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/22 - Heaters
Patent holdings for IPC class H01J 1/22
Total number of patents in this class: 22
10-year publication summary
|
0
|
0
|
1
|
1
|
3
|
3
|
4
|
2
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lockheed Martin Corporation | 3406 |
3 |
| Hamamatsu Photonics K.K. | 4161 |
2 |
| Isotopx Ltd | 14 |
2 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
1 |
| Aerojet-general Corporation | 22 |
1 |
| Applied Physics Technologies, Inc. | 12 |
1 |
| Denka Company Limited | 2189 |
1 |
| NuFlare Technology, Inc. | 770 |
1 |
| Safran Aircraft Engines | 5739 |
1 |
| Shanghai United Imaging Healthcare Co., Ltd. | 1569 |
1 |
| Siemens Healthcare GmbH | 938 |
1 |
| Addup | 121 |
1 |
| NuFlare Technology America, Inc. | 21 |
1 |
| Siemens Healthineers AG | 5714 |
1 |
| Snecma | 1065 |
1 |
| KLA Corporation | 1223 |
1 |
| Leptons-technologies | 2 |
1 |
| Pipl Limited | 26 |
1 |
| Other owners | 0 |