- All sections
- G - Physics
- G21K - Techniques for handling particles or ionising radiation not otherwise provided for; irradiation devices; gamma ray or x-ray microscopes
- G21K 1/02 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
Patent holdings for IPC class G21K 1/02
Total number of patents in this class: 942
10-year publication summary
|
94
|
70
|
85
|
78
|
58
|
74
|
56
|
42
|
33
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips N.V. | 22975 |
58 |
| General Electric Company | 18133 |
50 |
| Siemens Healthineers AG | 5714 |
30 |
| Koninklijke Philips Electronics N.V. | 13133 |
22 |
| Nuctech Company Limited | 1275 |
19 |
| Shanghai United Imaging Healthcare Co., Ltd. | 1569 |
19 |
| Tsinghua University | 5426 |
17 |
| Siemens Medical Solutions USA, Inc. | 1584 |
16 |
| Accuray Incorporated | 408 |
14 |
| GE Medical Systems Global Technology Company, LLC | 299 |
13 |
| Philips Intellectual Property & Standards GmbH | 2395 |
13 |
| Elekta AB (Publ) | 318 |
12 |
| Samsung Electronics Co., Ltd. | 131630 |
10 |
| Toshiba Medical Systems Corporation | 2236 |
10 |
| Varian Medical Systems, Inc. | 850 |
10 |
| Canon Inc. | 36841 |
9 |
| Hologic, Inc. | 1047 |
9 |
| American Science and Engineering, Inc. | 112 |
8 |
| ControlRad Systems, Inc. | 33 |
8 |
| Milabs B.V. | 23 |
8 |
| Other owners | 587 |