- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/68 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using high frequency electric fields
Patent holdings for IPC class G01N 21/68
Total number of patents in this class: 105
10-year publication summary
|
14
|
15
|
6
|
7
|
5
|
9
|
6
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 13796 |
7 |
| Samsung Electronics Co., Ltd. | 157557 |
6 |
| Hewlett-Packard Development Company, L.P. | 25216 |
4 |
| Horiba Jobin Yvon SAS | 47 |
4 |
| Applied Materials, Inc. | 20363 |
3 |
| Baxter International Inc. | 1889 |
3 |
| Baxter Healthcare S.A. | 1393 |
3 |
| ARKRAY, Inc. | 859 |
3 |
| Imagineering, Inc. | 125 |
3 |
| Servomex Group Limited | 38 |
3 |
| Hitachi High-Tech Corporation | 5819 |
3 |
| Hitachi High-Tech Analysis Corporation | 286 |
3 |
| Lam Research Corporation | 5621 |
2 |
| Shimadzu Corporation | 6337 |
2 |
| ASM IP Holding B.V. | 2387 |
2 |
| OndaVia, Inc. | 29 |
2 |
| Silixa Ltd. | 84 |
2 |
| SPECTRO Analytical Instruments GmbH | 66 |
2 |
| Seoul National University R&db Foundation | 4154 |
2 |
| I-lab.,inc. | 13 |
2 |
| Other owners | 44 |