- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 21/04 - Objectives involving mirrors
Patent holdings for IPC class G02B 21/04
Total number of patents in this class: 185
10-year publication summary
21
|
8
|
23
|
21
|
21
|
14
|
21
|
20
|
12
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
3m Innovative Properties Company | 18406 |
16 |
Carl Zeiss Microscopy GmbH | 1146 |
9 |
Evident Corporation | 1072 |
8 |
Iris International, Inc. | 62 |
7 |
Leica Microsystems CMS GmbH | 1034 |
6 |
Hamamatsu Photonics K.K. | 4161 |
5 |
Carl Zeiss SMT GmbH | 2646 |
5 |
The Regents of the University of California | 18943 |
4 |
Corning Incorporated | 9932 |
4 |
Shimadzu Corporation | 5791 |
4 |
The Arizona Board of Regents on Behalf of the University of Arizona | 1906 |
4 |
Centre National de La Recherche Scientifique | 9632 |
3 |
Ecole Polytechnique Federale de Lausanne (epfl) | 1434 |
3 |
Hamilton Thorne, Inc. | 21 |
3 |
Howard Hughes Medical Institute | 202 |
3 |
Nanolive SA | 19 |
3 |
ASML Holding N.V. | 542 |
2 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
The Trustees of Columbia University in the City of New York | 3440 |
2 |
Carl Zeiss AG | 855 |
2 |
Other owners | 90 |