- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
Patent holdings for IPC class G01N 27/04
Total number of patents in this class: 1925
10-year publication summary
|
143
|
187
|
202
|
186
|
197
|
150
|
159
|
128
|
141
|
115
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 24387 |
56 |
| Panasonic Intellectual Property Management Co., Ltd. | 31696 |
26 |
| Robert Bosch GmbH | 42742 |
24 |
| International Business Machines Corporation | 61353 |
23 |
| Samsung Electronics Co., Ltd. | 147131 |
18 |
| Mitsubishi Electric Corporation | 46295 |
15 |
| Kyocera Corporation | 13884 |
15 |
| Massachusetts Institute of Technology | 10080 |
14 |
| Halliburton Energy Services, Inc. | 20949 |
12 |
| The Boeing Company | 20098 |
12 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10930 |
12 |
| Giatec Scientific Inc. | 44 |
12 |
| 3m Innovative Properties Company | 17813 |
11 |
| LG Chem, Ltd. | 17636 |
10 |
| The Regents of the University of California | 20015 |
10 |
| Toshiba Corporation | 12383 |
10 |
| Hitachi, Ltd. | 15531 |
10 |
| LG Energy Solution, Ltd. | 15204 |
10 |
| Apple Inc. | 55287 |
9 |
| KOA Corporation | 420 |
9 |
| Other owners | 1607 |