- 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: 1726
10-year publication summary
|
140
|
173
|
149
|
150
|
152
|
172
|
141
|
125
|
124
|
39
|
| 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. | 877 |
112 |
| Fujitsu Optical Components Limited | 298 |
69 |
| Cisco Technology, Inc. | 22256 |
59 |
| Nippon Telegraph and Telephone Corporation | 16002 |
55 |
| Sumitomo Electric Industries, Ltd. | 16071 |
53 |
| Nokia Solutions And Networks Oy | 7054 |
47 |
| Psiquantum, Corp. | 507 |
46 |
| TDK Corporation | 6803 |
42 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47211 |
39 |
| Ciena Corporation | 2120 |
35 |
| Huawei Technologies Co., Ltd. | 119891 |
34 |
| NEC Corporation | 36611 |
33 |
| Lumentum Operations LLC | 913 |
33 |
| Marvell Asia PTE, Ltd. | 6349 |
31 |
| Mitsubishi Electric Corporation | 47556 |
26 |
| Cavium International | 4772 |
25 |
| Rockley Photonics Limited | 330 |
19 |
| Hyperlight Corporation | 86 |
19 |
| Acacia Technology, Inc. | 201 |
18 |
| Ramot at Tel-Aviv University Ltd. | 1527 |
17 |
| Other owners | 914 |