- 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: 1773
10-year publication summary
|
142
|
176
|
150
|
152
|
157
|
176
|
144
|
127
|
129
|
78
|
| 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. | 900 |
113 |
| Fujitsu Optical Components Limited | 298 |
69 |
| Cisco Technology, Inc. | 22555 |
63 |
| Nippon Telegraph and Telephone Corporation | 15939 |
54 |
| Sumitomo Electric Industries, Ltd. | 16448 |
53 |
| Psiquantum, Corp. | 556 |
50 |
| Nokia Solutions And Networks Oy | 7273 |
48 |
| TDK Corporation | 6910 |
45 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48560 |
42 |
| Huawei Technologies Co., Ltd. | 124115 |
35 |
| Ciena Corporation | 2193 |
35 |
| NEC Corporation | 37168 |
33 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 884 |
32 |
| Marvell Asia PTE, Ltd. | 6258 |
32 |
| Mitsubishi Electric Corporation | 48172 |
26 |
| Cavium International | 4585 |
25 |
| Hyperlight Corporation | 101 |
20 |
| Rockley Photonics Limited | 338 |
19 |
| Acacia Technology, Inc. | 202 |
18 |
| Massachusetts Institute of Technology | 10282 |
17 |
| Other owners | 944 |