- 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: 394
10-year publication summary
|
27
|
39
|
38
|
40
|
42
|
40
|
33
|
25
|
22
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Zeiss Microscopy GmbH | 1146 |
34 |
| Evident Corporation | 1072 |
25 |
| Nikon Corporation | 7162 |
22 |
| FUJIFILM Corporation | 27102 |
18 |
| Leica Microsystems CMS GmbH | 1034 |
12 |
| Hamamatsu Photonics K.K. | 4161 |
10 |
| Sony Corporation | 32931 |
9 |
| Illumina, Inc. | 2771 |
8 |
| The Regents of the University of California | 18943 |
6 |
| Lltech Management | 13 |
6 |
| Nanolive SA | 19 |
6 |
| Oxford University Innovation Limited | 1421 |
5 |
| Centre National de La Recherche Scientifique | 9632 |
4 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 2912 |
4 |
| Nanjing University of Science and Technology | 142 |
4 |
| Refeyn Ltd | 23 |
4 |
| General Electric Company | 18133 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
3 |
| Cambridge Enterprise Limited | 1096 |
3 |
| Coretronic Corporation | 1165 |
3 |
| Other owners | 205 |