- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/2022 - Non-metallic constituents
Patent holdings for IPC class G01N 33/2022
Total number of patents in this class: 18
10-year publication summary
|
0
|
0
|
1
|
1
|
0
|
3
|
3
|
5
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| House of Metals Company Limited | 34 |
4 |
| Predictive Nutrient Solutions, Inc. | 11 |
3 |
| Nippon Telegraph and Telephone Corporation | 17157 |
2 |
| JFE Steel Corporation | 6767 |
2 |
| LG Chem, Ltd. | 17561 |
1 |
| Northwestern University | 3364 |
1 |
| 9163-0384 Quebec Inc. | 5 |
1 |
| SANYO Special Steel Co., Ltd. | 219 |
1 |
| Wacker Chemie AG | 2102 |
1 |
| NCS Testing Technology Co., Ltd. | 18 |
1 |
| Xiamen Honglu Tungsten Molybdenum Industry Co., Ltd | 9 |
1 |
| Other owners | 0 |