- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/12 - Transmission through light guides, e.g. optical fibres (H04B 10/22, H04B 10/24, H04B 10/30 take precedence);;
Patent holdings for IPC class H04B 10/12
Total number of patents in this class: 842
10-year publication summary
|
31
|
32
|
16
|
13
|
3
|
4
|
4
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
84 |
| ZTE Corporation | 39218 |
47 |
| Fujitsu Limited | 19265 |
39 |
| II-VI Delaware, Inc. | 1720 |
31 |
| NEC Corporation | 32703 |
30 |
| Ciena Corporation | 1927 |
21 |
| Cisco Technology, Inc. | 18858 |
19 |
| Corning Cable Systems LLC | 455 |
17 |
| Sumitomo Electric Industries, Ltd. | 14131 |
13 |
| Alcatel Lucent SA | 1723 |
12 |
| Xieon Networks S.a.r.l. | 172 |
12 |
| AT&T Corporation | 206 |
11 |
| Wsou Investments, LLC | 1115 |
11 |
| RPX Corporation | 1571 |
10 |
| Avago Technologies International Sales Pte. Limited | 9260 |
9 |
| The Furukawa Electric Co., Ltd. | 3486 |
8 |
| Hewlett-Packard Development Company, L.P. | 28538 |
7 |
| Finisar Corporation | 300 |
7 |
| Hewlett Packard Enterprise Development LP | 10702 |
7 |
| Marvell Asia PTE, Ltd. | 6841 |
7 |
| Other owners | 440 |