- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 21/14 - Condensers affording illumination for phase-contrast observation
Patent holdings for IPC class G02B 21/14
Total number of patents in this class: 421
10-year publication summary
|
38
|
38
|
40
|
40
|
39
|
32
|
26
|
22
|
13
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Zeiss Microscopy GmbH | 1225 |
34 |
| Evident Corporation | 1038 |
24 |
| Nikon Corporation | 7297 |
22 |
| FUJIFILM Corporation | 29714 |
17 |
| Hamamatsu Photonics K.K. | 4461 |
13 |
| Leica Microsystems CMS GmbH | 1096 |
12 |
| Sony Corporation | 30891 |
9 |
| The Regents of the University of California | 20172 |
8 |
| Illumina, Inc. | 3396 |
8 |
| Nanolive SA | 21 |
6 |
| Oxford University Innovation Limited | 1562 |
6 |
| Centre National de La Recherche Scientifique | 10611 |
5 |
| Lltech Management | 12 |
5 |
| Cambridge Enterprise Limited | 1197 |
4 |
| Danmarks Tekniske Universitet | 984 |
4 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3195 |
4 |
| The University of Tokyo | 4235 |
4 |
| Nanjing University of Science and Technology | 167 |
4 |
| Refeyn Ltd | 31 |
4 |
| General Electric Company | 13863 |
3 |
| Other owners | 225 |