H04J 14/0286
Wdm hierarchical architectures
Official title: {WDM hierarchical architectures}
H04J14/0286 (Wdm hierarchical architectures) appears on 307 US grants and 270 published applications in this corpus.
Search patents in H04J- Granted patents
- 307
- Published applications
- 270
- Assignees
- 136
- Inventors
- 632
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 5 |
| 2002 | 9 | 41 |
| 2003 | 8 | 28 |
| 2004 | 12 | 21 |
| 2005 | 15 | 15 |
| 2006 | 25 | 13 |
| 2007 | 25 | 12 |
| 2008 | 21 | 13 |
| 2009 | 15 | 19 |
| 2010 | 17 | 18 |
| 2011 | 17 | 13 |
| 2012 | 13 | 12 |
| 2013 | 21 | 11 |
| 2014 | 10 | 7 |
| 2015 | 11 | 8 |
| 2016 | 8 | 8 |
| 2017 | 7 | 7 |
| 2018 | 5 | 2 |
| 2019 | 7 | 4 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 3 | 5 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical virtual-circuit-switching network system and optical switch thereof12 May 2026US 12,627,392 B2Genopsys Technologies Inc.
- Probabilistically shaped unamplified optical signaling17 Jun 2025US 12,335,668 B2Juniper Networks, Inc.
- Data transport in a virtualized distributed antenna system13 May 2025US 12,302,046 B2Dali Wireless, Inc.
- Intra data center optical communication7 Jan 2025US 12,191,914 B2Solanium Labs Ltd.
- Probabilistically shaped unamplified optical signaling19 Mar 2024US 11,937,029 B2Juniper Networks, Inc.
- Optical virtual-circuit-switching network system and optical switch thereof26 Sep 2024US 2024/0322932 A1Genopsys Technologies Inc.
- Probabilistically shaped unamplified optical signaling4 Jul 2024US 2024/0223922 A1Jupiter Networks, Inc.
- Data transport in a virtualized distributed antenna system4 Jul 2024US 2024/0223928 A1Dali Wireless, Inc.
- Probabilistically shaped unamplified optical signaling9 Feb 2023US 2023/0043960 A1Juniper Networks, Inc.
- Data transport in a virtualized distributed antenna system2 Feb 2023US 2023/0033684 A1Dali Wireless, Inc.
Most cited
By later US patents
- Inter-ring cross-connect for survivable multi-wavelength optical communication networks178US 6,226,111 B1Telcordia Technologies, Inc. · 2001
- Method and system for transporting ancillary network data160US 6,108,113 AMCI Communications Corporation · 2000
- System for wavelength division multiplexing/asynchronous transfer mode switching for network communication127US 5,550,818 ABell Communications Research, Inc. · 1996
- Modular all-optical cross-connect126US 6,614,953 B2Photuris, Inc. · 2003
- Optical system with tunable in-fiber gratings114US 5,579,143 ACiena Corporation · 1996