- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/904 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
Patent holdings for IPC class G01N 27/904
Total number of patents in this class: 123
10-year publication summary
|
2
|
6
|
7
|
8
|
11
|
16
|
16
|
24
|
23
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evident Canada, Inc. | 141 |
13 |
| JENTEK Sensors, Inc. | 63 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 9034 |
5 |
| Zetec, Inc. | 56 |
5 |
| Halliburton Energy Services, Inc. | 21242 |
4 |
| Arctic Pipe Inspection LLC | 8 |
4 |
| General Electric Company | 13816 |
3 |
| Olympus NDT Canada Inc. | 27 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2472 |
3 |
| Global Physical Asset Management, Inc. | 4 |
3 |
| Sichuan Deyuan Pipeline Technology Company Limited | 16 |
3 |
| Eddyfi Canada Inc. | 22 |
3 |
| Athena Industrial Technologies Inc. | 18 |
2 |
| Board of Trustees of Michigan State University | 1208 |
2 |
| Framatome ANP | 96 |
2 |
| KAL Tire, a Partnership | 18 |
2 |
| Nippon Steel Corporation | 6738 |
2 |
| Ontario Power Generation Inc. | 80 |
2 |
| Petroleo Brasileiro S.A. - Petrobras | 942 |
2 |
| Russell NDE Systems Inc. | 12 |
2 |
| Other owners | 47 |