- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/66 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
Patent holdings for IPC class G01N 21/66
Total number of patents in this class: 281
10-year publication summary
|
16
|
18
|
16
|
17
|
10
|
21
|
17
|
24
|
10
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Meso Scale Technologies, LLC | 347 |
34 |
| Roche Diagnostics Operations, Inc. | 1375 |
10 |
| Board of Regents, The University of Texas System | 5370 |
8 |
| BT Imaging Pty Ltd | 33 |
8 |
| Hitachi High-Tech Corporation | 4424 |
8 |
| Biometro Co Ltd. | 7 |
6 |
| F. Hoffmann-La Roche AG | 7958 |
5 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Hitachi High-Technologies Corporation | 2034 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
5 |
| Applied Materials, Inc. | 16587 |
4 |
| University of Maryland, Baltimore County | 224 |
4 |
| Vibrant Holdings, LLC | 62 |
4 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
4 |
| Roche Diagnostics GmbH | 2745 |
3 |
| Georgetown University | 591 |
3 |
| KLA-Tencor Corporation | 2574 |
3 |
| Lumencor, Inc. | 107 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1657 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Other owners | 154 |