- 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: 1801
10-year publication summary
|
241
|
235
|
172
|
146
|
118
|
116
|
101
|
54
|
34
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30016 |
51 |
| Exeger Operations AB | 77 |
42 |
| Sekisui Chemical Co., Ltd. | 3527 |
39 |
| Zeon Corporation | 4123 |
39 |
| Ricoh Company, Ltd. | 13345 |
35 |
| Fujikura Ltd. | 3020 |
34 |
| Alliance for Sustainable Energy, LLC | 833 |
34 |
| Cubicpv Inc. | 120 |
34 |
| Toshiba Corporation | 12536 |
26 |
| Sharp Kabushiki Kaisha | 18650 |
24 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1578 |
23 |
| Oxford Photovoltaics Limited | 91 |
22 |
| BASF SE | 21149 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 32968 |
16 |
| Daikin Industries, Ltd. | 10215 |
16 |
| Sharp Corporation | 10369 |
15 |
| Hyundai Motor Company | 23203 |
14 |
| Massachusetts Institute of Technology | 10178 |
14 |
| The Regents of the University of California | 20366 |
13 |
| Panasonic Corporation | 19882 |
13 |
| Other owners | 1281 |