- All sections
- G - Physics
- G21G - Conversion of chemical elementsradioactive sources
- G21G 4/00 - Radioactive sources
Patent holdings for IPC class G21G 4/00
Total number of patents in this class: 91
10-year publication summary
|
6
|
4
|
3
|
6
|
4
|
6
|
1
|
2
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BWXT Isotope Technology Group, Inc. | 66 |
6 |
| Gigaphoton Inc. | 1334 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49324 |
3 |
| Eckert & Ziegler Isotope Products, Inc. | 9 |
3 |
| Westinghouse Electric Company LLC | 1199 |
3 |
| The Regents of the University of California | 20960 |
2 |
| Tokyo Electron Limited | 13987 |
2 |
| Cymer, Inc. | 44 |
2 |
| ASML Netherlands B.V. | 8045 |
2 |
| Wisconsin Alumni Research Foundation | 3903 |
2 |
| Hamamatsu Photonics K.K. | 4730 |
2 |
| Neuboron Medtech Ltd. | 94 |
2 |
| Orano Med | 50 |
2 |
| Spec150, LLC | 3 |
2 |
| Schlumberger Technology Corporation | 11981 |
1 |
| Illinois Tool Works Inc. | 11902 |
1 |
| Abbott Laboratories | 2233 |
1 |
| NGK Insulators, Ltd. | 5168 |
1 |
| Board of Regents, The University of Texas System | 6187 |
1 |
| The Regents of the University of Michigan | 5063 |
1 |
| Other owners | 47 |