H04J 14/0249
For upstream transmission
Official title: {for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU}
H04J14/0249 (For upstream transmission) appears on 944 US grants and 1,029 published applications in this corpus.
Search patents in H04J- Granted patents
- 944
- Published applications
- 1,029
- Assignees
- 286
- Inventors
- 1,761
- 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 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 19 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 4 |
| 2002 | 22 | 59 |
| 2003 | 23 | 68 |
| 2004 | 22 | 55 |
| 2005 | 19 | 79 |
| 2006 | 42 | 84 |
| 2007 | 49 | 77 |
| 2008 | 63 | 70 |
| 2009 | 63 | 109 |
| 2010 | 55 | 53 |
| 2011 | 54 | 43 |
| 2012 | 63 | 53 |
| 2013 | 43 | 51 |
| 2014 | 62 | 41 |
| 2015 | 58 | 45 |
| 2016 | 49 | 23 |
| 2017 | 40 | 29 |
| 2018 | 26 | 14 |
| 2019 | 23 | 21 |
| 2020 | 22 | 11 |
| 2021 | 12 | 11 |
| 2022 | 13 | 11 |
| 2023 | 12 | 8 |
| 2024 | 9 | 1 |
| 2025 | 3 | 6 |
| 2026 | 3 | 3 |
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.
- Wavelength configuration apparatus and system, and wavelength configuration method9 Jun 2026US 12,652,120 B2Huawei Technologies Co., Ltd.
- Methods and systems for delivery of multiple passive optical network services10 Feb 2026US RE50,793 E1CommScope Technologies LLC
- Multi-wavelength laser system for optical data communication links and associated methods21 Oct 2025US 12,451,663 B2Ayar Labs, Inc.
- Optical line terminal, optical network unit, and optical communications system24 Jun 2025US 12,341,602 B2Huawei Technologies Co., Ltd.
- Methods for transmitting and receiving information, communication nodes, and storage medium19 Mar 2026US 2026/0082143 A1Zte Corporation
- Optical distribution apparatus, optical distribution network unit, and network system15 Jan 2026US 2026/0016651 A1Zte Corporation
- Optical transmission apparatus and optical transmission method8 Jan 2026US 2026/0012280 A1Nippon Telegraph and Telepone Corporation
- Frequency acquisition in a passive optical network25 Dec 2025US 2025/0392393 A1Nokia Solutions and Networks Oy
- Communication method and related apparatus4 Dec 2025US 2025/0373356 A1Huawei Technologies Co., Ltd.
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