- 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 1/225 - 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 by interference in an optical waveguide structure
Patent holdings for IPC class G02F 1/225
Total number of patents in this class: 1701
10-year publication summary
|
140
|
173
|
149
|
150
|
152
|
172
|
141
|
125
|
123
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Osaka Cement Co., Ltd. | 879 |
112 |
| Fujitsu Optical Components Limited | 297 |
68 |
| Cisco Technology, Inc. | 22202 |
59 |
| Nippon Telegraph and Telephone Corporation | 16266 |
55 |
| Sumitomo Electric Industries, Ltd. | 15967 |
51 |
| Nokia Solutions And Networks Oy | 6965 |
46 |
| Psiquantum, Corp. | 481 |
45 |
| TDK Corporation | 6775 |
41 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46560 |
36 |
| Ciena Corporation | 2085 |
35 |
| NEC Corporation | 36455 |
33 |
| Huawei Technologies Co., Ltd. | 117973 |
33 |
| Lumentum Operations LLC | 906 |
33 |
| Marvell Asia PTE, Ltd. | 6394 |
30 |
| Mitsubishi Electric Corporation | 47338 |
26 |
| Cavium International | 4842 |
25 |
| Rockley Photonics Limited | 330 |
19 |
| Hyperlight Corporation | 80 |
18 |
| Acacia Technology, Inc. | 200 |
18 |
| Ramot at Tel-Aviv University Ltd. | 1512 |
17 |
| Other owners | 901 |