Actively monitored optical fiber panel
US-9525483-B2 · Dec 20, 2016 · US
Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04J14/021 |
| Official title | {Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]} |
| Display label | Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] |
| Total patents | 479 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 40 |
| 2016 | 52 |
| 2017 | 64 |
| 2018 | 44 |
| 2019 | 72 |
| 2020 | 61 |
| 2021 | 41 |
| 2022 | 30 |
| 2023 | 29 |
| 2024 | 23 |
| 2025 | 19 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for routing traffic using asymmetrical optical connections
US-2016344506-A1 · Nov 24, 2016 · US
System and Method for Optical Network
US-2016323660-A1 · Nov 3, 2016 · US
Enhanced routing and wavelength assignment techniques for reducing wavelength continuity blocking
US-9485551-B2 · Nov 1, 2016 · US
Actively monitored optical fiber panel
US-2016277103-A1 · Sep 22, 2016 · US
Optical receiver that has function to detect signal superimposed on optical signal and method for receiving optical signal
US-2016277139-A1 · Sep 22, 2016 · US
Optical drop device, optical drop method, and optical add device
US-9450699-B2 · Sep 20, 2016 · US
Optical network switching device
US-2016269809-A1 · Sep 15, 2016 · US
Distributed spatial mode processing for spatial-mode multiplexed communication systems
US-2016269142-A1 · Sep 15, 2016 · US
Optical reception apparatus, optical transmission apparatus, optical communication system, optical communication method, and storage medium storing program
US-2016261363-A1 · Sep 8, 2016 · US
A Method and Apparatus For Configuring Optical Network Nodes
US-2016241468-A1 · Aug 18, 2016 · US
Method and apparatus for routing traffic using asymmetrical optical connections
US-9413640-B2 · Aug 9, 2016 · US
Network controller having predictable analytics and failure avoidance in packet-optical networks
US-9369200-B1 · Jun 14, 2016 · US
Integrated controller for routing / switching network and underlying optical transport system
US-9369785-B1 · Jun 14, 2016 · US
Signal detection circuit and optical transmission equipment
US-2016142171-A1 · May 19, 2016 · US
Method and apparatus for space-division multiplexing systems
US-9344779-B2 · May 17, 2016 · US
Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node
US-9326049-B2 · Apr 26, 2016 · US
Controlling Optical Signal Power Levelling in an Optical Communication Network
US-2016028503-A1 · Jan 28, 2016 · US
Method and apparatus for routing traffic using asymmetrical optical connections
US-9246623-B2 · Jan 26, 2016 · US
Adaptive post digital filter and inter-symbol interference equalizer for optical communication
US-2016020857-A1 · Jan 21, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04J14/021?
- CPC H04J14/021 is the Cooperative Patent Classification code for “Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM].”
- How many patents are filed under CPC H04J14/021 (Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM])?
- Our database includes 479 publications tagged with this CPC code.
- Is patent activity under CPC H04J14/021 growing?
- Publication counts under this code: 23 in 2024 vs 19 in 2025 (latest complete years).