- 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: 1791
10-year publication summary
|
235
|
241
|
235
|
172
|
146
|
118
|
116
|
100
|
53
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29817 |
51 |
| Exeger Operations AB | 75 |
41 |
| Sekisui Chemical Co., Ltd. | 3493 |
39 |
| Zeon Corporation | 4116 |
39 |
| Ricoh Company, Ltd. | 13371 |
35 |
| Fujikura Ltd. | 2973 |
34 |
| Alliance for Sustainable Energy, LLC | 829 |
34 |
| Cubicpv Inc. | 123 |
33 |
| Toshiba Corporation | 12548 |
26 |
| Sharp Kabushiki Kaisha | 18624 |
24 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1566 |
23 |
| Oxford Photovoltaics Limited | 91 |
22 |
| BASF SE | 21087 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
16 |
| Daikin Industries, Ltd. | 10166 |
16 |
| Sharp Corporation | 10304 |
15 |
| Hyundai Motor Company | 22813 |
14 |
| Massachusetts Institute of Technology | 10143 |
14 |
| The Regents of the University of California | 20289 |
13 |
| Panasonic Corporation | 19966 |
13 |
| Other owners | 1273 |