- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/18 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
Patent holdings for IPC class G01N 27/18
Total number of patents in this class: 241
10-year publication summary
|
20
|
19
|
19
|
25
|
28
|
20
|
19
|
21
|
12
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Automotive Systems, Ltd. | 3970 |
14 |
| Robert Bosch GmbH | 40953 |
11 |
| TDK Corporation | 6306 |
10 |
| Oxford University Innovation Limited | 1421 |
9 |
| Niterra Co., Ltd. | 1122 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
8 |
| Hitachi Astemo, Ltd. | 5618 |
8 |
| Siemens AG | 24990 |
6 |
| NGK Spark Plug Co., Ltd. | 935 |
6 |
| Nevada Nanotech Systems Inc. | 22 |
5 |
| Shimadzu Corporation | 5791 |
4 |
| InvenSense, Inc. | 1014 |
4 |
| JT International S.A. | 2449 |
4 |
| Sciosense B.V. | 124 |
4 |
| Toshiba Corporation | 12017 |
3 |
| STMicroelectronics S.r.l. | 3693 |
3 |
| Continental Automotive GmbH | 5573 |
3 |
| Omron Corporation | 6968 |
3 |
| ams International AG | 399 |
3 |
| CSAA Insurance Services, Inc. | 16 |
3 |
| Other owners | 121 |