- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light; devices using stimulated emission of electromagnetic radiation in wave ranges other than optical
- H01S 5/34 - Structure or shape of the active region; Materials 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: 1176
10-year publication summary
|
104
|
89
|
89
|
111
|
118
|
108
|
124
|
97
|
102
|
31
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4161 |
58 |
| Sumitomo Electric Industries, Ltd. | 14131 |
43 |
| Kyocera Sld Laser, Inc. | 281 |
36 |
| Toshiba Corporation | 12017 |
27 |
| Daylight Solutions, Inc. | 117 |
25 |
| The Regents of the University of California | 18943 |
20 |
| Lumentum Operations LLC | 696 |
17 |
| OSRAM OLED GmbH | 1841 |
16 |
| University of Central Florida Research Foundation, Inc. | 1098 |
16 |
| Hewlett Packard Enterprise Development LP | 10702 |
15 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1102 |
15 |
| Thorlabs Quantum Electronics, Inc. | 47 |
15 |
| Thorlabs, Inc. | 415 |
14 |
| II-VI Delaware, Inc. | 1720 |
13 |
| Wisconsin Alumni Research Foundation | 3774 |
12 |
| Praevium Research, Inc. | 38 |
12 |
| Cisco Technology, Inc. | 18858 |
11 |
| Corning Incorporated | 9932 |
11 |
| The Furukawa Electric Co., Ltd. | 3486 |
11 |
| Nichia Corporation | 3394 |
10 |
| Other owners | 779 |