- 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: 92
10-year publication summary
6
|
12
|
7
|
12
|
10
|
8
|
9
|
3
|
2
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nikon Metrology, NV | 69 |
7 |
Centre National de La Recherche Scientifique | 9632 |
3 |
Electronics and Telecommunications Research Institute | 8830 |
3 |
Arizona Board of Regents on behalf of Arizona State University | 2226 |
3 |
Varian Medical Systems, Inc. | 850 |
3 |
Modern Electron, Inc. | 40 |
3 |
Schlumberger Technology Corporation | 9690 |
2 |
Thomson Licensing | 4027 |
2 |
California Institute of Technology | 3884 |
2 |
NuFlare Technology, Inc. | 770 |
2 |
Varex Imaging Corporation | 294 |
2 |
Triad National Security, LLC | 580 |
2 |
Accelerad Technologies, Inc. | 3 |
2 |
TibaRay, Inc | 8 |
2 |
Shaanxi Liyou Baihui Technology Development Co. Ltd | 3 |
2 |
IMG Altair LLC | 4 |
2 |
General Electric Company | 18133 |
1 |
Siemens AG | 24990 |
1 |
Varian Semiconductor Equipment Associates, Inc. | 1282 |
1 |
Massachusetts Institute of Technology | 9795 |
1 |
Other owners | 46 |