- 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: 5787
10-year publication summary
|
422
|
380
|
305
|
288
|
229
|
187
|
127
|
73
|
89
|
41
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA-Tencor Corporation | 2543 |
173 |
| Hitachi High-Tech Corporation | 5396 |
121 |
| Sysmex Corporation | 1438 |
53 |
| The Regents of the University of California | 20108 |
51 |
| Honeywell International Inc. | 13561 |
47 |
| KLA-Tencor Technologies Corporation | 184 |
46 |
| Samsung Electronics Co., Ltd. | 147787 |
43 |
| The Boeing Company | 20131 |
39 |
| Halliburton Energy Services, Inc. | 20964 |
36 |
| Siemens Healthcare Diagnostics Inc. | 2081 |
32 |
| Schlumberger Technology Corporation | 10898 |
29 |
| ASML Netherlands B.V. | 7482 |
29 |
| Massachusetts Institute of Technology | 10115 |
27 |
| Pacific Biosciences of California, Inc. | 763 |
25 |
| Sony Corporation | 30921 |
23 |
| Applied Materials, Inc. | 18932 |
23 |
| Tokyo Electron Limited | 12979 |
23 |
| Bio-Rad Laboratories, Inc. | 1618 |
22 |
| Roche Diabetes Care, Inc. | 1503 |
22 |
| Canon Inc. | 40509 |
21 |
| Other owners | 4902 |