- 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: 142
10-year publication summary
|
4
|
6
|
10
|
21
|
24
|
22
|
16
|
12
|
10
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Face International Corp. | 99 |
22 |
| Spark Thermonics, Inc. | 20 |
16 |
| Birmingham Technologies, Inc. | 23 |
14 |
| Immunolight, LLC | 208 |
7 |
| Denso Corporation | 24282 |
5 |
| The Trustees of the University of Pennsylvania | 4322 |
5 |
| Space Charge, LLC | 17 |
5 |
| Toshiba Corporation | 12336 |
4 |
| Spark Thermionics, Inc. | 7 |
4 |
| GCE Institute Inc. | 36 |
4 |
| Modern Hydrogen, Inc. | 33 |
4 |
| Consiglio Nazionale delle Ricerche | 545 |
3 |
| GE Aviation Systems LLC | 583 |
3 |
| The Board of Trustees of the Leland Stanford Junior University | 6408 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3803 |
2 |
| Landa Labs (2012) Ltd. | 134 |
2 |
| Sierra Nevada Corporation | 37 |
2 |
| The University of Bristol | 250 |
2 |
| Toshiba Energy Systems & Solutions Corp. | 1079 |
2 |
| Modern Electron, LLC | 5 |
2 |
| Other owners | 32 |