H04J 14/02126
Multicast switch arrangements
Official title: {Multicast switch arrangements}
H04J14/02126 (Multicast switch arrangements) appears on 68 US grants and 73 published applications in this corpus.
Search patents in H04J- Granted patents
- 68
- Published applications
- 73
- Assignees
- 29
- Inventors
- 140
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 2 | 3 |
| 2007 | 2 | 0 |
| 2008 | 2 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 2 | 3 |
| 2015 | 3 | 6 |
| 2016 | 5 | 10 |
| 2017 | 8 | 5 |
| 2018 | 8 | 7 |
| 2019 | 10 | 7 |
| 2020 | 4 | 3 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 4 | 4 |
| 2024 | 1 | 6 |
| 2025 | 6 | 3 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for modelling of passive connectors and a one-touch ROADM optical network6 Jan 2026US 12,519,557 B2Infinera Corporation
- Bandwidth optimization for connection validation in pre-occupied spectrum18 Nov 2025US 12,476,704 B2Ciena Corporation
- ROADM architecture for wide spectrum channels30 Sep 2025US 12,432,004 B2Ciena Corporation
- Turn up and express traffic validation for communication systems23 Sep 2025US 12,425,118 B2Infinera Corporation
- Systems and methods for correcting downstream power excursions during upstream loading operations in optical networks12 Aug 2025US 12,388,556 B2Infinera Corporation
- Bandwidth Optimization for Connection Validation in Pre-Occupied Spectrum26 Feb 2026US 2026/0058723 A1Ciena Corporation
- Alarm Correlation and Ticketing for Open Reconfigurable Optical Add/Drop Multiplexer Networks24 Apr 2025US 2025/0132856 A1AT&T Intellectual Property I, L. P.
- Apparatus and method for ase idler passband loading control (aplc)3 Apr 2025US 2025/0112723 A1Infinera Corporation
- Automated ase idler management system for wss-based spectral filling in optical line systems3 Apr 2025US 2025/0112724 A1Infinera Corporation
- Optical channel monitor (ocm) with spectrally-multiplexed wavelength reference for monitoring of wavelength division multiplexed (wdm) signals3 Oct 2024US 2024/0333381 A1II-Vi Delaware, Inc.
Most cited
By later US patents
- Flexible wavelength selective switch fabric with arbitrary add and drop capability33US 7,231,107 B1Ciena Corporation · 2007
- Modular add/drop multiplexer including a wavelength selective switch27US 7,308,197 B1Ciena Corporation · 2007
- Method and system for optical connection validation in a reconfigurable optical add-drop multiplexer (ROADM) node24US 9,680,569 B2Ciena Corporation · 2017
- Broadcast and select all optical network23US 7,120,359 B2OpVista Incorporated · 2006
- Method and system for long haul optical transport for applications sensitive to data flow interruption21US 7,839,766 B1AT&T Intellectual Property II, L. P. · 2010