- 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: 2837
10-year publication summary
|
149
|
171
|
222
|
211
|
217
|
211
|
242
|
203
|
227
|
187
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24896 |
38 |
| Hamamatsu Photonics K.K. | 4464 |
33 |
| Hitachi High-Tech Corporation | 5428 |
32 |
| Halliburton Energy Services, Inc. | 21020 |
26 |
| KLA-Tencor Corporation | 2542 |
25 |
| FUJIFILM Corporation | 29728 |
24 |
| Shimadzu Corporation | 6217 |
23 |
| Panasonic Intellectual Property Management Co., Ltd. | 32199 |
22 |
| Boe Technology Group Co., Ltd. | 41733 |
20 |
| Contemporary Amperex Technology Co., Limited | 7417 |
20 |
| Illumina, Inc. | 3399 |
20 |
| Ushio Denki Kabushiki Kaisha | 1197 |
19 |
| The Regents of the University of California | 20195 |
17 |
| Becton, Dickinson and Company | 7362 |
17 |
| Siemens Healthcare Diagnostics Inc. | 2097 |
16 |
| Essenlix Corporation, DBA Essenlix Corporation | 292 |
14 |
| The University of Tokyo | 4244 |
14 |
| Sony Corporation | 30885 |
13 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10961 |
13 |
| HORIBA, Ltd. | 831 |
12 |
| Other owners | 2419 |