- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/48 - Electron guns
Patent holdings for IPC class H01J 29/48
Total number of patents in this class: 90
10-year publication summary
|
7
|
12
|
10
|
8
|
9
|
3
|
1
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nikon Metrology, NV | 65 |
7 |
| Centre National de La Recherche Scientifique | 10870 |
3 |
| Electronics and Telecommunications Research Institute | 9496 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2838 |
3 |
| Varian Medical Systems, Inc. | 893 |
3 |
| Schlumberger Technology Corporation | 11471 |
2 |
| California Institute of Technology | 4011 |
2 |
| NuFlare Technology, Inc. | 907 |
2 |
| Varex Imaging Corporation | 323 |
2 |
| Triad National Security, LLC | 622 |
2 |
| Accelerad Technologies, Inc. | 4 |
2 |
| TibaRay, Inc | 9 |
2 |
| Shaanxi Liyou Baihui Technology Development Co. Ltd | 3 |
2 |
| IMG Altair LLC | 4 |
2 |
| Siemens AG | 24236 |
1 |
| The Regents of the University of California | 20506 |
1 |
| Varian Semiconductor Equipment Associates, Inc. | 1198 |
1 |
| Massachusetts Institute of Technology | 10196 |
1 |
| The Board of Trustees of the Leland Stanford Junior University | 6600 |
1 |
| Pioneer Corporation | 3848 |
1 |
| Other owners | 47 |