- 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: 6793
10-year publication summary
|
517
|
469
|
437
|
391
|
318
|
308
|
244
|
183
|
113
|
20
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA-Tencor Corporation | 2608 |
184 |
| Hitachi High-Tech Corporation | 3948 |
152 |
| KLA-Tencor Technologies Corporation | 433 |
83 |
| Sysmex Corporation | 1415 |
65 |
| The Regents of the University of California | 18182 |
59 |
| Samsung Electronics Co., Ltd. | 120977 |
54 |
| Honeywell International Inc. | 14246 |
54 |
| The Boeing Company | 20387 |
52 |
| Halliburton Energy Services, Inc. | 19720 |
41 |
| Massachusetts Institute of Technology | 9552 |
34 |
| ASML Netherlands B.V. | 6475 |
34 |
| Roche Diabetes Care, Inc. | 1511 |
32 |
| Corning Incorporated | 9702 |
31 |
| Schlumberger Technology Corporation | 9212 |
30 |
| Canon Inc. | 36860 |
30 |
| Applied Materials Israel, Ltd. | 538 |
30 |
| Siemens Healthcare Diagnostics Inc. | 1861 |
30 |
| Applied Materials, Inc. | 15283 |
29 |
| General Electric Company | 25481 |
28 |
| Tokyo Electron Limited | 11059 |
27 |
| Other owners | 5714 |