- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
Patent holdings for IPC class H01L 31/055
Total number of patents in this class: 647
10-year publication summary
|
91
|
72
|
60
|
58
|
58
|
61
|
52
|
39
|
40
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ENI S.p.A. | 1241 |
32 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
18 |
| Nitto Denko Corporation | 7879 |
17 |
| BASF SE | 19740 |
14 |
| Massachusetts Institute of Technology | 9795 |
12 |
| Koninklijke Philips Electronics N.V. | 13133 |
9 |
| Board of Trustees of Michigan State University | 1141 |
9 |
| Epistar Corporation | 1553 |
8 |
| The Regents of the University of California | 18943 |
7 |
| Sharp Corporation | 10015 |
7 |
| Bridgestone Corporation | 7067 |
7 |
| Semiconductor Components Industries, L.L.C. | 5345 |
7 |
| Korea Institute of Science and Technology | 2022 |
7 |
| Merck Patent GmbH | 5909 |
6 |
| The Regents of the University of Michigan | 4409 |
6 |
| OSRAM Opto Semiconductors GmbH | 3390 |
6 |
| Nimbus Engineering Inc. | 12 |
6 |
| Sharp Kabushiki Kaisha | 18957 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| NGK Insulators, Ltd. | 4589 |
5 |
| Other owners | 453 |