H04J 14/0278
Wdm optical network architectures
Official title: {WDM optical network architectures}
H04J14/0278 (Wdm optical network architectures) appears on 2,930 US grants and 2,991 published applications in this corpus.
Search patents in H04J- Granted patents
- 2,930
- Published applications
- 2,991
- Assignees
- 678
- Inventors
- 4,622
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 18 | 0 |
| 1995 | 6 | 0 |
| 1996 | 29 | 0 |
| 1997 | 20 | 0 |
| 1998 | 37 | 0 |
| 1999 | 44 | 0 |
| 2000 | 51 | 0 |
| 2001 | 53 | 31 |
| 2002 | 60 | 193 |
| 2003 | 90 | 179 |
| 2004 | 93 | 191 |
| 2005 | 91 | 178 |
| 2006 | 136 | 184 |
| 2007 | 143 | 159 |
| 2008 | 144 | 144 |
| 2009 | 158 | 210 |
| 2010 | 171 | 166 |
| 2011 | 130 | 137 |
| 2012 | 153 | 169 |
| 2013 | 157 | 134 |
| 2014 | 170 | 100 |
| 2015 | 141 | 110 |
| 2016 | 114 | 91 |
| 2017 | 124 | 105 |
| 2018 | 90 | 74 |
| 2019 | 98 | 75 |
| 2020 | 74 | 68 |
| 2021 | 58 | 70 |
| 2022 | 71 | 65 |
| 2023 | 54 | 66 |
| 2024 | 48 | 33 |
| 2025 | 41 | 34 |
| 2026 | 26 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrical-to-coherent optical-to-electrical data communication cable assembly29 Sep 2026US 12,750,139 B2
- Optical network unit, central office node and methods of configuring an optical network unit22 Sep 2026US 12,744,616 B2Telefonaktiebolaget LM Ericsson (publ)
- Multi-band coexistence element18 Aug 2026US 12,712,635 B2Verizon Patent and Licensing Inc.
- Multi-chip electro-photonic network11 Aug 2026US 12,706,680 B2Celestial AI Inc.
- Separately managed network entity with virtualized transport function4 Aug 2026US 12,701,346 B2Infinera Corporation
- Optical transmission device and optical transmission method1 Oct 2026US 2026/0303209 A1NTT, Inc.
- Optical distribution network with coexisting passive optical network and coherent passive optical network10 Sep 2026US 2026/0269943 A1Cable Television Laboratories, Inc.
- Optical communication network system20 Aug 2026US 2026/0246556 A1Keio University
- Digital neural network13 Aug 2026US 2026/0235805 A1Sicily Merger Sub II, Inc.
- Optical splitter of passive optical network and optical signal processing method6 Aug 2026US 2026/0230183 A1Zte Corporation
Most cited
By later US patents
- Digital communication network architecture for providing universal information services520US 4,763,317 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1988
- Power line communications system and method of operating the same239US 7,321,291 B2Current Technologies, LLC · 2008
- Wavelength division multiplexing-passive optical network system227US 9,008,513 B2Electronics and Telecommunications Research Institute · 2015
- Method and apparatus for multiplexing in a wireless communication infrastructure211US 6,826,163 B2NEXTG Networks · 2004
- Distributed termination system for two-way hybrid networks210US 6,490,727 B1Harmonic, Inc. · 2002