- 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: 977
10-year publication summary
|
62
|
84
|
66
|
70
|
62
|
51
|
47
|
36
|
41
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20911 |
18 |
| TDK Corporation | 6761 |
18 |
| The Regents of the University of California | 19961 |
13 |
| International Business Machines Corporation | 61305 |
13 |
| Koninklijke Philips Electronics N.V. | 9542 |
13 |
| JFE Steel Corporation | 6849 |
13 |
| Sintokogio, Ltd. | 1166 |
13 |
| JENTEK Sensors, Inc. | 63 |
11 |
| Mettler-Toledo Safeline Ltd. | 59 |
11 |
| Mitsubishi Electric Corporation | 46197 |
9 |
| Hamamatsu Photonics K.K. | 4426 |
9 |
| Glory Ltd. | 1212 |
9 |
| General Electric Company | 13810 |
8 |
| Allegro Microsystems, LLC | 1341 |
8 |
| Integral Geometry Science Inc. | 36 |
8 |
| Sony Corporation | 31025 |
7 |
| Koninklijke Philips N.V. | 24767 |
7 |
| Ishida Co., Ltd. | 532 |
7 |
| National University Corporation Kobe University | 525 |
7 |
| US Synthetic Corporation | 622 |
7 |
| Other owners | 768 |