- 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 5/0687 - Stabilising the frequency of the laser
Patent holdings for IPC class H01S 5/0687
Total number of patents in this class: 465
10-year publication summary
48
|
47
|
34
|
47
|
65
|
44
|
28
|
34
|
32
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Furukawa Electric Co., Ltd. | 3486 |
20 |
Sumitomo Electric Device Innovations, Inc. | 405 |
16 |
Mitsubishi Electric Corporation | 43934 |
12 |
Sumitomo Electric Industries, Ltd. | 14131 |
11 |
Nippon Telegraph and Telephone Corporation | 14195 |
11 |
OpenLight Photonics, Inc | 180 |
10 |
NEC Corporation | 32703 |
9 |
Marvell Asia PTE, Ltd. | 6841 |
9 |
Huawei Technologies Co., Ltd. | 100781 |
8 |
Corning Incorporated | 9932 |
8 |
ColdQuanta, Inc., AKA ColdQuanta | 142 |
7 |
Oclaro Technology Limited | 75 |
7 |
Thorlabs, Inc. | 415 |
7 |
NKT Photonics A/S | 215 |
7 |
Phovel.co.ltd. | 36 |
7 |
Fujitsu Optical Components Limited | 266 |
6 |
iSenseCloud, Inc. | 13 |
6 |
Lumentum Technology UK Limited | 72 |
6 |
Acacia Technology, Inc. | 174 |
6 |
Oracle International Corporation | 12313 |
5 |
Other owners | 287 |