- 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: 1795
10-year publication summary
|
242
|
235
|
176
|
149
|
120
|
118
|
101
|
55
|
36
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30543 |
51 |
| Exeger Operations AB | 74 |
41 |
| Sekisui Chemical Co., Ltd. | 3623 |
39 |
| Zeon Corporation | 4156 |
39 |
| Ricoh Company, Ltd. | 13337 |
36 |
| Cubicpv Inc. | 115 |
34 |
| Fujikura Ltd. | 3098 |
33 |
| Alliance for Energy Innovation, LLC | 570 |
28 |
| Toshiba Corporation | 12577 |
24 |
| Sharp Kabushiki Kaisha | 18525 |
24 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1612 |
23 |
| Oxford Photovoltaics Limited | 95 |
22 |
| BASF SE | 21318 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
16 |
| Daikin Industries, Ltd. | 10511 |
16 |
| Sharp Corporation | 10569 |
15 |
| Hyundai Motor Company | 24745 |
14 |
| Massachusetts Institute of Technology | 10259 |
14 |
| The Regents of the University of California | 20790 |
13 |
| Panasonic Corporation | 18951 |
13 |
| Other owners | 1284 |