- All sections
- G - Physics
- G02F - Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved thereinnon-linear opticsfrequency-changing of lightoptical logic elementsoptical analogue/digital converters
- G02F 1/025 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction in an optical waveguide structure
Patent holdings for IPC class G02F 1/025
Total number of patents in this class: 1209
10-year publication summary
|
101
|
103
|
115
|
104
|
103
|
100
|
70
|
64
|
89
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 16263 |
73 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46735 |
53 |
| Rockley Photonics Limited | 330 |
50 |
| Cisco Technology, Inc. | 22245 |
46 |
| NEC Corporation | 36475 |
35 |
| Huawei Technologies Co., Ltd. | 118634 |
34 |
| Mitsubishi Electric Corporation | 47416 |
32 |
| Ciena Corporation | 2089 |
27 |
| OpenLight Photonics, Inc | 195 |
26 |
| Renesas Electronics Corporation | 5887 |
25 |
| Marvell Asia PTE, Ltd. | 6386 |
23 |
| Sumitomo Electric Industries, Ltd. | 15994 |
22 |
| Nokia Solutions And Networks Oy | 6984 |
20 |
| Hewlett Packard Enterprise Development LP | 10809 |
19 |
| Celestial AI Inc. | 182 |
19 |
| Massachusetts Institute of Technology | 10189 |
18 |
| Ayar Labs, Inc. | 170 |
16 |
| Fujitsu Optical Components Limited | 298 |
15 |
| GLOBALFOUNDRIES U.S. Inc. | 6400 |
15 |
| STMicroelectronics (Crolles 2) SAS | 641 |
15 |
| Other owners | 626 |