- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 21/12 - Condensers affording bright-field illumination
Patent holdings for IPC class G02B 21/12
Total number of patents in this class: 178
10-year publication summary
|
14
|
19
|
22
|
17
|
15
|
15
|
23
|
7
|
16
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evident Corporation | 1072 |
12 |
| Nanotronics Imaging, Inc. | 189 |
11 |
| Nikon Corporation | 7162 |
9 |
| Leica Microsystems CMS GmbH | 1034 |
9 |
| Labrador Diagnostics LLC | 287 |
8 |
| Carl Zeiss Microscopy GmbH | 1146 |
7 |
| KLA-Tencor Corporation | 2574 |
5 |
| The Regents of the University of California | 18943 |
3 |
| Koninklijke Philips N.V. | 22975 |
3 |
| Olympus Corporation | 13667 |
3 |
| Carl Zeiss Meditec AG | 1541 |
3 |
| Genea IP Holdings Pty Ltd | 51 |
3 |
| Huron Technologies International Inc. | 67 |
3 |
| KEYENCE Corporation | 372 |
3 |
| Leica Microsystems (Schweiz) AG | 106 |
3 |
| Optofluidics, Inc. | 23 |
3 |
| Scopio Labs Ltd. | 50 |
3 |
| Sony Corporation | 32931 |
2 |
| California Institute of Technology | 3884 |
2 |
| Hirox Co., Ltd. | 5 |
2 |
| Other owners | 81 |