- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/83 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
Patent holdings for IPC class G01N 27/83
Total number of patents in this class: 275
10-year publication summary
|
17
|
23
|
23
|
34
|
27
|
24
|
17
|
21
|
12
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44962 |
21 |
| Schlumberger Technology Corporation | 10296 |
10 |
| Konica Minolta, Inc. | 8558 |
9 |
| Shimadzu Corporation | 6036 |
9 |
| JFE Steel Corporation | 6587 |
9 |
| Tokyo Rope Manufacturing Co., Ltd. | 48 |
9 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 423 |
6 |
| Hitachi, Ltd. | 15247 |
5 |
| Tsinghua University | 5719 |
5 |
| TDW Delaware, Inc. | 167 |
5 |
| Tenaris Connections B.V. | 187 |
5 |
| Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada | 87 |
4 |
| Hohai University | 198 |
4 |
| Kinder Morgan, Inc. | 24 |
4 |
| Konecranes Global Corporation | 492 |
4 |
| Northeastern University | 523 |
4 |
| Yokogawa Electric Corporation | 1697 |
4 |
| Rosen IP AG | 63 |
4 |
| Schlumberger Canada Limited | 7167 |
3 |
| Schlumberger Technology B.v. | 5083 |
3 |
| Other owners | 148 |