- All sections
- H - Electricity
- H01G - Capacitorscapacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices of the electrolytic type
- H01G 9/20 - Light-sensitive devices
Patent holdings for IPC class H01G 9/20
Total number of patents in this class: 1784
10-year publication summary
|
236
|
242
|
235
|
177
|
149
|
120
|
115
|
100
|
53
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29399 |
51 |
| Exeger Operations AB | 75 |
41 |
| Sekisui Chemical Co., Ltd. | 3388 |
39 |
| Zeon Corporation | 4079 |
39 |
| Ricoh Company, Ltd. | 13279 |
35 |
| Fujikura Ltd. | 2938 |
34 |
| Alliance for Sustainable Energy, LLC | 802 |
34 |
| Cubicpv Inc. | 122 |
33 |
| Toshiba Corporation | 12345 |
26 |
| Sharp Kabushiki Kaisha | 18738 |
24 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1535 |
23 |
| Oxford Photovoltaics Limited | 86 |
22 |
| BASF SE | 20915 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
16 |
| Daikin Industries, Ltd. | 10004 |
16 |
| Sharp Corporation | 10245 |
15 |
| Hyundai Motor Company | 22022 |
14 |
| Massachusetts Institute of Technology | 10055 |
14 |
| Panasonic Corporation | 20099 |
13 |
| The Regents of the University of California | 19929 |
12 |
| Other owners | 1267 |