- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate lightdevices using stimulated emission of electromagnetic radiation in wave ranges other than optical
- H01S 5/34 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
Patent holdings for IPC class H01S 5/34
Total number of patents in this class: 1317
10-year publication summary
|
87
|
88
|
109
|
117
|
108
|
127
|
114
|
107
|
90
|
57
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4448 |
69 |
| Sumitomo Electric Industries, Ltd. | 15609 |
44 |
| Kyocera Sld Laser, Inc. | 299 |
37 |
| Toshiba Corporation | 12502 |
31 |
| Daylight Solutions, Inc. | 120 |
26 |
| The Regents of the University of California | 20087 |
23 |
| Lumentum Operations LLC | 739 |
18 |
| University of Central Florida Research Foundation, Inc. | 1195 |
17 |
| Silanna UV Technologies Pte Ltd | 114 |
17 |
| II-VI Delaware, Inc. | 1650 |
16 |
| OSRAM OLED GmbH | 1773 |
16 |
| Hewlett Packard Enterprise Development LP | 10744 |
15 |
| Thorlabs Quantum Electronics, Inc. | 39 |
15 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1321 |
14 |
| Thorlabs, Inc. | 420 |
14 |
| Seiko Epson Corporation | 19556 |
13 |
| The Furukawa Electric Co., Ltd. | 3685 |
13 |
| Praevium Research, Inc. | 39 |
13 |
| Ams-osram International GmbH | 1042 |
13 |
| Centre National de La Recherche Scientifique | 10531 |
12 |
| Other owners | 881 |