H04J 14/0242
In wdm-pon
Official title: {in WDM-PON}
H04J14/0242 (In wdm-pon) appears on 1,267 US grants and 1,344 published applications in this corpus.
Search patents in H04J- Granted patents
- 1,267
- Published applications
- 1,344
- Assignees
- 360
- Inventors
- 2,231
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 3 | 0 |
| 1996 | 22 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 16 | 0 |
| 2001 | 11 | 8 |
| 2002 | 27 | 69 |
| 2003 | 27 | 87 |
| 2004 | 30 | 66 |
| 2005 | 25 | 85 |
| 2006 | 59 | 99 |
| 2007 | 61 | 90 |
| 2008 | 76 | 82 |
| 2009 | 79 | 135 |
| 2010 | 72 | 78 |
| 2011 | 69 | 54 |
| 2012 | 83 | 67 |
| 2013 | 59 | 62 |
| 2014 | 77 | 52 |
| 2015 | 65 | 56 |
| 2016 | 58 | 33 |
| 2017 | 55 | 45 |
| 2018 | 35 | 35 |
| 2019 | 46 | 39 |
| 2020 | 40 | 19 |
| 2021 | 22 | 23 |
| 2022 | 27 | 19 |
| 2023 | 16 | 16 |
| 2024 | 18 | 5 |
| 2025 | 8 | 11 |
| 2026 | 11 | 9 |
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.
- Multi-band coexistence element18 Aug 2026US 12,712,635 B2Verizon Patent and Licensing Inc.
- Supporting communications in optical communication systems21 Jul 2026US 12,689,849 B2Nokia Solutions and Networks Oy
- High-capacity channel for higher speed passive optical networks14 Jul 2026US 12,683,704 B2MaxLinear, Inc.
- Wavelength configuration apparatus and system, and wavelength configuration method9 Jun 2026US 12,652,120 B2Huawei Technologies Co., Ltd.
- Optical communication network system20 Aug 2026US 2026/0246556 A1Keio University
- Multi-band coexistence element16 Jul 2026US 2026/0205199 A1Frontier Communications Holdings, LLC
- Signal transmission system, optical transmission apparatus and signal transmission method25 Jun 2026US 2026/0180706 A1NTT, Inc.
- Systems and methods for activating multi-rate optical network units in optical networks30 Apr 2026US 2026/0121781 A1Adtran, Inc.
- Methods for transmitting and receiving information, communication nodes, and storage medium19 Mar 2026US 2026/0082143 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