- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
Patent holdings for IPC class G01N 21/00
Total number of patents in this class: 5741
10-year publication summary
|
422
|
380
|
305
|
288
|
229
|
187
|
128
|
74
|
90
|
57
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA-Tencor Corporation | 2538 |
172 |
| Hitachi High-Tech Corporation | 5468 |
121 |
| Sysmex Corporation | 1436 |
52 |
| The Regents of the University of California | 20289 |
51 |
| Honeywell International Inc. | 13568 |
46 |
| KLA-Tencor Technologies Corporation | 167 |
44 |
| Samsung Electronics Co., Ltd. | 149087 |
43 |
| The Boeing Company | 20163 |
39 |
| Halliburton Energy Services, Inc. | 21078 |
36 |
| Siemens Healthcare Diagnostics Inc. | 2103 |
33 |
| Schlumberger Technology Corporation | 11054 |
30 |
| ASML Netherlands B.V. | 7585 |
29 |
| Massachusetts Institute of Technology | 10143 |
26 |
| Pacific Biosciences of California, Inc. | 757 |
25 |
| Sony Corporation | 30787 |
23 |
| Tokyo Electron Limited | 13136 |
23 |
| Applied Materials, Inc. | 19248 |
22 |
| Bio-Rad Laboratories, Inc. | 1619 |
22 |
| Roche Diabetes Care, Inc. | 1493 |
22 |
| Canon Inc. | 41108 |
21 |
| Other owners | 4861 |