- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 45/00 - Discharge tubes functioning as thermionic generators
Patent holdings for IPC class H01J 45/00
Total number of patents in this class: 134
10-year publication summary
|
6
|
4
|
6
|
10
|
21
|
24
|
22
|
13
|
12
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Face International Corp. | 88 |
18 |
| Birmingham Technologies, Inc. | 24 |
14 |
| Spark Thermonics, Inc. | 16 |
13 |
| Modern Electron, Inc. | 40 |
7 |
| Denso Corporation | 23338 |
5 |
| Space Charge, LLC | 17 |
5 |
| Toshiba Corporation | 12017 |
4 |
| The Trustees of the University of Pennsylvania | 4122 |
4 |
| Spark Thermionics, Inc. | 7 |
4 |
| GCE Institute Inc. | 40 |
4 |
| Consiglio Nazionale delle Ricerche | 521 |
3 |
| GE Aviation Systems LLC | 569 |
3 |
| Immunolight, LLC | 199 |
3 |
| General Electric Company | 18133 |
2 |
| The Boeing Company | 19843 |
2 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
2 |
| Innovy | 9 |
2 |
| Landa Labs (2012) Ltd. | 131 |
2 |
| Sierra Nevada Corporation | 42 |
2 |
| Other owners | 33 |