- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
Patent holdings for IPC class G01N 27/12
Total number of patents in this class: 2467
10-year publication summary
|
152
|
232
|
266
|
265
|
305
|
221
|
214
|
146
|
181
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 41786 |
66 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
43 |
| Massachusetts Institute of Technology | 9913 |
32 |
| Google LLC | 40853 |
30 |
| Infineon Technologies AG | 8137 |
29 |
| Kyocera Corporation | 13344 |
25 |
| Sensirion AG | 206 |
25 |
| Sciosense B.V. | 124 |
25 |
| KOA Corporation | 402 |
24 |
| Honeywell International Inc. | 14021 |
23 |
| TDK Corporation | 6539 |
18 |
| Figaro Engineering Inc. | 42 |
18 |
| NGK Spark Plug Co., Ltd. | 901 |
17 |
| Samsung Electronics Co., Ltd. | 139001 |
16 |
| Nuvoton Technology Corporation Japan | 527 |
16 |
| NEC Corporation | 34413 |
14 |
| Fujitsu Limited | 18405 |
14 |
| Sumitomo Chemical Company, Limited | 8988 |
14 |
| Carrier Corporation | 4451 |
14 |
| Korea Advanced Institute of Science and Technology | 4188 |
14 |
| Other owners | 1990 |