- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
Patent holdings for IPC class G01N 27/72
Total number of patents in this class: 972
10-year publication summary
|
64
|
90
|
69
|
73
|
66
|
54
|
50
|
39
|
43
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20788 |
18 |
| TDK Corporation | 6689 |
17 |
| The Regents of the University of California | 19859 |
13 |
| International Business Machines Corporation | 61144 |
13 |
| Koninklijke Philips Electronics N.V. | 9909 |
13 |
| Sintokogio, Ltd. | 1166 |
13 |
| JFE Steel Corporation | 6806 |
12 |
| JENTEK Sensors, Inc. | 60 |
11 |
| Mettler-Toledo Safeline Ltd. | 61 |
11 |
| General Electric Company | 13838 |
9 |
| Mitsubishi Electric Corporation | 45899 |
9 |
| Hamamatsu Photonics K.K. | 4391 |
9 |
| Glory Ltd. | 1200 |
9 |
| Allegro Microsystems, LLC | 1323 |
8 |
| Integral Geometry Science Inc. | 37 |
8 |
| Sony Corporation | 31124 |
7 |
| Koninklijke Philips N.V. | 24660 |
7 |
| Ishida Co., Ltd. | 525 |
7 |
| National University Corporation Kobe University | 522 |
7 |
| US Synthetic Corporation | 624 |
7 |
| Other owners | 764 |