- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/62 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode
Patent holdings for IPC class G01N 27/62
Total number of patents in this class: 3070
10-year publication summary
|
237
|
267
|
221
|
311
|
187
|
176
|
139
|
119
|
104
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6191 |
648 |
| Micromass UK Limited | 1119 |
172 |
| DH Technologies Development Pte. Ltd. | 1124 |
78 |
| Hitachi High-Technologies Corporation | 2001 |
70 |
| Hamamatsu Photonics K.K. | 4448 |
69 |
| Smiths Detection-Watford Limited | 195 |
56 |
| Hitachi High-Tech Corporation | 5374 |
40 |
| Hitachi, Ltd. | 15572 |
34 |
| Atonarp Inc | 115 |
34 |
| Battelle Memorial Institute | 2492 |
31 |
| Nuctech Company Limited | 1422 |
31 |
| National Institute of Advanced Industrial Science and Technology | 3793 |
28 |
| Purdue Research Foundation | 3670 |
23 |
| Osaka University | 3388 |
23 |
| Owlstone Medical Limited | 100 |
23 |
| Bruker Daltonics GmbH & Co. KG | 441 |
20 |
| National University Corporation Nagoya University | 847 |
18 |
| Keio University | 1104 |
16 |
| Tsinghua University | 5953 |
15 |
| Excellims Corporation | 52 |
15 |
| Other owners | 1626 |