Systems and methods for sensing fiber optic cables of access networks
US-2022321211-A1 · Oct 6, 2022 · US
using loopbacks
using loopbacks · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B10/035 |
| Official title | using loopbacks |
| Display label | using loopbacks |
| Total patents | 99 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 13 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 13 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical self loopback for co-packaged optics
US-11411643-B1 · Aug 9, 2022 · US
Dynamic error quantizer tuning systems and methods
US-11239909-B2 · Feb 1, 2022 · US
Switching at a terminal end transceiver between primary and auxiliary communication paths
US-2021281352-A1 · Sep 9, 2021 · US
Optical loopback circuits for transceivers and related methods
US-11057114-B2 · Jul 6, 2021 · US
Optical test device and systems
US-11012153-B2 · May 18, 2021 · US
Otdr receive device with connectivity feedback
US-2021135752-A1 · May 6, 2021 · US
Dynamic error quantizer tuning systems and methods
US-2021135751-A1 · May 6, 2021 · US
Diagnostic waveguide for optical chip testing
US-2021116295-A1 · Apr 22, 2021 · US
Method and apparatus for detecting operational conditions of an optical link in an optical network
US-10979140-B2 · Apr 13, 2021 · US
Optical tapping in an indexing architecture
US-2021083766-A1 · Mar 18, 2021 · US
Optical transceiver, optical transceiver module using the same, and test method for optical transceiver
US-10938481-B2 · Mar 2, 2021 · US
Method and apparatus for detecting operational conditions of an optical link in an optical network
US-2021013962-A1 · Jan 14, 2021 · US
OTDR receive device with connectivity feedback
US-10862582-B1 · Dec 8, 2020 · US
Optical test device and systems
US-2020350987-A9 · Nov 5, 2020 · US
Optical tapping in an indexing architecture
US-10790899-B2 · Sep 29, 2020 · US
Diagnostic waveguide for optical chip testing
US-10732029-B2 · Aug 4, 2020 · US
System for Detecting Circuit Anomalies in Trailer Wiring
US-2020174055-A1 · Jun 4, 2020 · US
Optical transceiver, optical transceiver module using the same, and test method for optical transceiver
US-2020136728-A1 · Apr 30, 2020 · US
Techniques for parameter reporting of elements in an optical transmission system using high loss loopback (HLLB) data and a line monitoring system implementing the same
US-10637565-B2 · Apr 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B10/035?
- CPC H04B10/035 is the Cooperative Patent Classification code for “using loopbacks.”
- How many patents are filed under CPC H04B10/035 (using loopbacks)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC H04B10/035 growing?
- Publication counts under this code: 12 in 2024 vs 8 in 2025 (latest complete years).