- 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: 6285
10-year publication summary
|
469
|
437
|
392
|
317
|
311
|
252
|
199
|
133
|
72
|
30
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KLA-Tencor Corporation | 2574 |
181 |
| Hitachi High-Tech Corporation | 4424 |
135 |
| KLA-Tencor Technologies Corporation | 346 |
72 |
| Sysmex Corporation | 1418 |
63 |
| The Regents of the University of California | 18943 |
52 |
| Honeywell International Inc. | 13799 |
49 |
| Samsung Electronics Co., Ltd. | 131630 |
46 |
| The Boeing Company | 19843 |
45 |
| Halliburton Energy Services, Inc. | 20165 |
37 |
| ASML Netherlands B.V. | 6816 |
31 |
| Siemens Healthcare Diagnostics Inc. | 1946 |
30 |
| Schlumberger Technology Corporation | 9690 |
29 |
| Massachusetts Institute of Technology | 9795 |
28 |
| Roche Diabetes Care, Inc. | 1492 |
28 |
| Applied Materials, Inc. | 16587 |
27 |
| Pacific Biosciences of California, Inc. | 738 |
27 |
| Tokyo Electron Limited | 11599 |
26 |
| Corning Incorporated | 9932 |
25 |
| Sony Corporation | 32931 |
24 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
24 |
| Other owners | 5306 |