- 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: 99
10-year publication summary
|
1
|
6
|
4
|
3
|
6
|
4
|
5
|
1
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gigaphoton Inc. | 1221 |
6 |
| BWXT Isotope Technology Group, Inc. | 67 |
6 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42389 |
3 |
| Cymer, Inc. | 71 |
3 |
| Eckert & Ziegler Isotope Products, Inc. | 10 |
3 |
| Westinghouse Electric Company LLC | 1134 |
3 |
| The Regents of the University of California | 19857 |
2 |
| Tokyo Electron Limited | 12620 |
2 |
| ASML Netherlands B.V. | 7355 |
2 |
| Hamamatsu Photonics K.K. | 4403 |
2 |
| Neuboron Medtech Ltd. | 93 |
2 |
| Universite Laval | 717 |
2 |
| Orano Med | 53 |
2 |
| Spec150, LLC | 6 |
2 |
| Schlumberger Technology Corporation | 10662 |
1 |
| Illinois Tool Works Inc. | 11450 |
1 |
| Abbott Laboratories | 2410 |
1 |
| NGK Insulators, Ltd. | 4944 |
1 |
| Board of Regents, The University of Texas System | 5763 |
1 |
| The Regents of the University of Michigan | 4676 |
1 |
| Other owners | 53 |