- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 23/222 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
Patent holdings for IPC class G01N 23/222
Total number of patents in this class: 121
10-year publication summary
|
10
|
6
|
14
|
10
|
10
|
10
|
7
|
3
|
6
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Riken | 1688 |
7 |
| Rhombus Holdings LLC | 8 |
4 |
| The United States of America, as represented by the Secretary of Agriculture | 1093 |
4 |
| Schlumberger Technology Corporation | 10627 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
3 |
| Georgia-Pacific Gypsum LLC | 219 |
3 |
| Auburn University | 501 |
3 |
| Korea Atomic Energy Research Institute | 431 |
3 |
| Sabia, Incorporated | 3 |
3 |
| Southern Innovation International Pty Ltd. | 36 |
3 |
| XRSciences LLC | 5 |
3 |
| Chrysos Corporation Limited | 16 |
3 |
| Phoenix LLC | 22 |
3 |
| American Science and Engineering, Inc. | 105 |
2 |
| Hydro Aluminium Rolled Products GmbH | 117 |
2 |
| Nautilus Minerals Pacific Pty Ltd | 26 |
2 |
| Passport Systems, Inc. | 28 |
2 |
| RWE Power Aktiengesellschaft | 43 |
2 |
| Topcon Corporation | 1061 |
2 |
| Westinghouse Electric Company LLC | 1134 |
2 |
| Other owners | 62 |