- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/01 - Arrangements or apparatus for facilitating the optical investigation
Patent holdings for IPC class G01N 21/01
Total number of patents in this class: 2733
10-year publication summary
|
171
|
183
|
239
|
222
|
237
|
223
|
256
|
199
|
225
|
83
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24226 |
38 |
| Hamamatsu Photonics K.K. | 4378 |
33 |
| Hitachi High-Tech Corporation | 5221 |
29 |
| KLA-Tencor Corporation | 2546 |
25 |
| Halliburton Energy Services, Inc. | 20684 |
24 |
| FUJIFILM Corporation | 29172 |
24 |
| Shimadzu Corporation | 6120 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 30769 |
20 |
| Illumina, Inc. | 3254 |
20 |
| Boe Technology Group Co., Ltd. | 40416 |
19 |
| Ushio Denki Kabushiki Kaisha | 1172 |
18 |
| The Regents of the University of California | 19780 |
17 |
| Becton, Dickinson and Company | 7211 |
17 |
| Siemens Healthcare Diagnostics Inc. | 2042 |
17 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10787 |
14 |
| Essenlix Corporation, DBA Essenlix Corporation | 280 |
14 |
| Sony Corporation | 31183 |
13 |
| The University of Tokyo | 4129 |
13 |
| Osaka University | 3350 |
12 |
| Tsinghua University | 5813 |
10 |
| Other owners | 2334 |