- 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: 2995
10-year publication summary
|
183
|
239
|
222
|
237
|
223
|
259
|
212
|
251
|
240
|
110
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25590 |
39 |
| Hitachi High-Tech Corporation | 5694 |
36 |
| Hamamatsu Photonics K.K. | 4620 |
34 |
| Halliburton Energy Services, Inc. | 21257 |
26 |
| FUJIFILM Corporation | 30327 |
25 |
| KLA-Tencor Corporation | 2522 |
25 |
| Contemporary Amperex Technology Co., Limited | 9293 |
24 |
| Shimadzu Corporation | 6310 |
23 |
| Panasonic Intellectual Property Management Co., Ltd. | 33812 |
22 |
| Illumina, Inc. | 3483 |
21 |
| Siemens Healthcare Diagnostics Inc. | 2129 |
21 |
| Boe Technology Group Co., Ltd. | 43343 |
20 |
| Ushio Denki Kabushiki Kaisha | 1203 |
20 |
| Becton, Dickinson and Company | 7537 |
18 |
| The Regents of the University of California | 20590 |
16 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11021 |
14 |
| The University of Tokyo | 4333 |
14 |
| Sony Corporation | 30327 |
13 |
| Essenlix Corporation, DBA Essenlix Corporation | 279 |
13 |
| HORIBA, Ltd. | 860 |
13 |
| Other owners | 2558 |