- All sections
- G - Physics
- G21G - Conversion of chemical elements; radioactive sources
- G21G 4/00 - Radioactive sources
Patent holdings for IPC class G21G 4/00
Total number of patents in this class: 110
10-year publication summary
|
1
|
6
|
4
|
3
|
7
|
4
|
5
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cymer, Inc. | 96 |
6 |
| Gigaphoton Inc. | 1186 |
6 |
| BWXT Isotope Technology Group, Inc. | 65 |
6 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40539 |
3 |
| Westinghouse Electric Company LLC | 1116 |
3 |
| The Regents of the University of California | 19493 |
2 |
| Tokyo Electron Limited | 12090 |
2 |
| ASML Netherlands B.V. | 7130 |
2 |
| Hamamatsu Photonics K.K. | 4305 |
2 |
| Eckert & Ziegler Isotope Products, Inc. | 9 |
2 |
| Jubilant DraxImage Inc. | 126 |
2 |
| Neuboron Medtech Ltd. | 93 |
2 |
| Universite Laval | 707 |
2 |
| Zakrytoe Aktsionernoe Obshchestvo Protom | 2 |
2 |
| Orano Med | 46 |
2 |
| Spec150, LLC | 6 |
2 |
| General Electric Company | 17803 |
1 |
| Schlumberger Technology Corporation | 10228 |
1 |
| Illinois Tool Works Inc. | 11369 |
1 |
| Abbott Laboratories | 2462 |
1 |
| Other owners | 60 |