- 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: 1767
10-year publication summary
|
130
|
148
|
198
|
211
|
192
|
200
|
155
|
158
|
121
|
45
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 23338 |
56 |
| Robert Bosch GmbH | 40953 |
29 |
| International Business Machines Corporation | 60644 |
25 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
16 |
| Kyocera Corporation | 12735 |
14 |
| Samsung Electronics Co., Ltd. | 131630 |
13 |
| Mitsubishi Electric Corporation | 43934 |
13 |
| Massachusetts Institute of Technology | 9795 |
13 |
| Halliburton Energy Services, Inc. | 20165 |
11 |
| The Boeing Company | 19843 |
11 |
| Hitachi, Ltd. | 16452 |
11 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
11 |
| Giatec Scientific Inc. | 37 |
11 |
| Apple Inc. | 50209 |
10 |
| 3m Innovative Properties Company | 18406 |
10 |
| LG Chem, Ltd. | 17205 |
10 |
| The Regents of the University of California | 18943 |
10 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
9 |
| The Procter & Gamble Company | 22178 |
8 |
| LG Electronics Inc. | 69257 |
8 |
| Other owners | 1468 |