- 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 5/0687 - Stabilising the frequency of the laser
Patent holdings for IPC class H01S 5/0687
Total number of patents in this class: 515
10-year publication summary
|
33
|
47
|
65
|
44
|
30
|
32
|
33
|
41
|
27
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Furukawa Electric Co., Ltd. | 3717 |
25 |
| Mitsubishi Electric Corporation | 47449 |
17 |
| Sumitomo Electric Device Innovations, Inc. | 462 |
17 |
| NEC Corporation | 36475 |
12 |
| Nippon Telegraph and Telephone Corporation | 16263 |
12 |
| Sumitomo Electric Industries, Ltd. | 16000 |
11 |
| Huawei Technologies Co., Ltd. | 118879 |
11 |
| Marvell Asia PTE, Ltd. | 6376 |
11 |
| OpenLight Photonics, Inc | 195 |
9 |
| Corning Incorporated | 10405 |
8 |
| ColdQuanta, Inc., AKA ColdQuanta | 178 |
8 |
| NKT Photonics A/S | 264 |
8 |
| Oclaro Technology Limited | 75 |
7 |
| Thorlabs, Inc. | 387 |
7 |
| Phovel.co.ltd. | 44 |
7 |
| Acacia Technology, Inc. | 200 |
7 |
| Fujitsu Optical Components Limited | 298 |
6 |
| Lumentum Operations LLC | 909 |
6 |
| iSenseCloud, Inc. | 16 |
6 |
| Lumentum Technology UK Limited | 89 |
6 |
| Other owners | 314 |