- 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: 995
10-year publication summary
67
|
77
|
102
|
104
|
86
|
60
|
77
|
54
|
61
|
30
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20862 |
58 |
JENTEK Sensors, Inc. | 62 |
35 |
The Boeing Company | 20042 |
22 |
General Electric Company | 13811 |
19 |
Zetec, Inc. | 52 |
19 |
Commissariat à l'énergie atomique et aux energies alternatives | 10924 |
16 |
Mitsubishi Heavy Industries, Ltd. | 8694 |
15 |
Sintokogio, Ltd. | 1166 |
15 |
Evident Canada, Inc. | 121 |
15 |
Baker Hughes Holdings LLC | 3004 |
14 |
IHI Corporation | 3416 |
12 |
Evident Scientific, Inc. | 175 |
11 |
Institut Dr. Foerster GmbH & Co. KG | 34 |
9 |
Westinghouse Electric Company LLC | 1136 |
9 |
Electricite de France | 733 |
8 |
Saudi Arabian Oil Company | 12997 |
8 |
LG Energy Solution, Ltd. | 14807 |
8 |
Sumitomo Chemical Company, Limited | 9040 |
7 |
Scan Systems Corp., DBA Scan Systems | 14 |
7 |
Sumitomo Metal Industries, Ltd. | 383 |
7 |
Other owners | 681 |