- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/17 - in which processing or amplification is carried out without conversion of the signal from optical form
Patent holdings for IPC class H04B 10/17
Total number of patents in this class: 196
10-year publication summary
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1
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0
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0
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1
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0
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0
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0
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Corporation | 206 |
9 |
| Northrop Grumman Systems Corporation | 2940 |
9 |
| Ciena Corporation | 1927 |
9 |
| Lockheed Martin Corporation | 3406 |
8 |
| NEC Corporation | 32703 |
7 |
| Fujitsu Limited | 19265 |
7 |
| Fujikura Ltd. | 2777 |
7 |
| OFS Fitel, LLC | 549 |
5 |
| Xieon Networks S.a.r.l. | 172 |
5 |
| IMRA America, Inc. | 174 |
4 |
| Electro Scientific Industries, Inc. | 416 |
4 |
| II-VI Delaware, Inc. | 1720 |
4 |
| Institut National D'optique | 309 |
4 |
| Wsou Investments, LLC | 1115 |
4 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Huawei Technologies Co., Ltd. | 100781 |
3 |
| Bookham Technology plc | 48 |
3 |
| ECI Telecom Ltd. | 162 |
3 |
| IPG Photonics Corporation | 494 |
3 |
| Lumentum Operations LLC | 696 |
3 |
| Other owners | 92 |