H04J 14/023
In wdm passive optical networks [wdm-pon]
Official title: {in WDM passive optical networks [WDM-PON]}
H04J14/023 (In wdm passive optical networks [wdm-pon]) appears on 365 US grants and 373 published applications in this corpus.
Search patents in H04J- Granted patents
- 365
- Published applications
- 373
- Assignees
- 154
- Inventors
- 701
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 13 |
| 2003 | 5 | 21 |
| 2004 | 6 | 15 |
| 2005 | 6 | 22 |
| 2006 | 14 | 23 |
| 2007 | 14 | 30 |
| 2008 | 22 | 27 |
| 2009 | 18 | 32 |
| 2010 | 21 | 16 |
| 2011 | 20 | 9 |
| 2012 | 20 | 13 |
| 2013 | 14 | 10 |
| 2014 | 18 | 11 |
| 2015 | 12 | 16 |
| 2016 | 11 | 10 |
| 2017 | 15 | 11 |
| 2018 | 7 | 16 |
| 2019 | 19 | 13 |
| 2020 | 17 | 10 |
| 2021 | 9 | 12 |
| 2022 | 14 | 12 |
| 2023 | 13 | 7 |
| 2024 | 7 | 4 |
| 2025 | 8 | 11 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical network unit testing in a multi-wavelength passive optical network system8 Sep 2026US 12,732,298 B2Verizon Patent and Licensing Inc.
- Communication system and method for ultra-flexible and ultra-reliable laser beam based wireless communication18 Aug 2026US 12,712,657 B2Wireless Photonics LLC
- Systems and methods for diagnosing anomalies occurring within a passive optical network via integrated domains4 Aug 2026US 12,700,922 B1Verizon Patent and Licensing Inc.
- Bonding over sub-carrier multiplexed channels30 Jun 2026US 12,671,517 B2Ciena Corporation
- Optical network unit, optical line terminal and method, device and medium for communication16 Jun 2026US 12,659,633 B2Nokia Solutions and Networks Oy
- Wavelength division multiplexing (wdm) lane shuffling in a network27 Aug 2026US 2026/0255090 A1Mellanox Technologies, Ltd.
- Communication system and method for ultra-flexible and ultra-reliable laser beam based wireless communication4 Jun 2026US 2026/0155906 A1Wireless Photonics LLC
- Technology-aware optical device for an optical network28 May 2026US 2026/0149524 A1Nokia Solutions and Networks Oy
- Multi-path, smart optical time-domain reflectometer7 May 2026US 2026/0128789 A1AT&T Intellectual Property I, L. P.
- Systems and methods for fiber upstream trace determination16 Apr 2026US 2026/0106667 A1Frontier Communications Holdings, LLC
Most cited
By later US patents
- Power line communications system and method of operating the same239US 7,321,291 B2Current Technologies, LLC · 2008
- Distributed termination system for two-way hybrid networks210US 6,490,727 B1Harmonic, Inc. · 2002
- Power line communications device and method of use202US 7,382,232 B2Current Technologies, LLC · 2008
- Power line communications device and method161US 7,450,000 B2Current Technologies, LLC · 2008
- Dynamically responsive CATV system with shared fiber optic link157US 5,136,411 AGeneral Instrument Corporation · 1992