- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/90 - 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
Patent holdings for IPC class G01N 27/90
Total number of patents in this class: 957
10-year publication summary
|
75
|
67
|
77
|
102
|
104
|
86
|
59
|
74
|
49
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
55 |
| JENTEK Sensors, Inc. | 59 |
29 |
| The Boeing Company | 19843 |
25 |
| General Electric Company | 18133 |
19 |
| Zetec, Inc. | 48 |
17 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
16 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
15 |
| Sintokogio, Ltd. | 1148 |
15 |
| Evident Scientific, Inc. | 170 |
12 |
| IHI Corporation | 3268 |
10 |
| Institut Dr. Foerster GmbH & Co. KG | 32 |
9 |
| Westinghouse Electric Company LLC | 1087 |
9 |
| Evident Canada, Inc. | 72 |
9 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
8 |
| Sumitomo Chemical Company, Limited | 8808 |
7 |
| Siemens Energy, Inc. | 1770 |
7 |
| Electricite de France | 695 |
7 |
| Saudi Arabian Oil Company | 11322 |
7 |
| Sumitomo Metal Industries, Ltd. | 453 |
7 |
| Baker Hughes Holdings LLC | 3060 |
7 |
| Other owners | 667 |