- 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: 1407
10-year publication summary
|
89
|
111
|
118
|
108
|
128
|
117
|
120
|
94
|
73
|
68
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4730 |
74 |
| Sumitomo Electric Industries, Ltd. | 16437 |
45 |
| Kyocera Sld Laser, Inc. | 308 |
37 |
| Toshiba Corporation | 12727 |
32 |
| Daylight Solutions, Inc. | 118 |
28 |
| The Regents of the University of California | 20960 |
24 |
| II-VI Delaware, Inc. | 1621 |
20 |
| Silanna UV Technologies Pte Ltd | 124 |
19 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 889 |
18 |
| Ams-osram International GmbH | 1709 |
18 |
| University of Central Florida Research Foundation, Inc. | 1259 |
17 |
| Hewlett Packard Enterprise Development LP | 11560 |
16 |
| Thorlabs Quantum Electronics, Inc. | 32 |
15 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1484 |
14 |
| Seiko Epson Corporation | 20536 |
13 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11137 |
13 |
| The Furukawa Electric Co., Ltd. | 3725 |
13 |
| Thorlabs, Inc. | 370 |
13 |
| Centre National de La Recherche Scientifique | 11133 |
12 |
| Wisconsin Alumni Research Foundation | 3903 |
12 |
| Other owners | 954 |