H04J 14/0245
For downstream transmission
Official title: {for downstream transmission, e.g. optical line terminal [OLT] to ONU}
H04J14/0245 (For downstream transmission) appears on 1,124 US grants and 1,200 published applications in this corpus.
Search patents in H04J- Granted patents
- 1,124
- Published applications
- 1,200
- Assignees
- 332
- Inventors
- 2,065
- Latest grant
- 18 Aug 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 | 2 | 0 |
| 1996 | 19 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 8 |
| 2002 | 26 | 68 |
| 2003 | 26 | 86 |
| 2004 | 29 | 66 |
| 2005 | 24 | 84 |
| 2006 | 59 | 98 |
| 2007 | 61 | 90 |
| 2008 | 74 | 79 |
| 2009 | 78 | 133 |
| 2010 | 72 | 72 |
| 2011 | 67 | 48 |
| 2012 | 80 | 63 |
| 2013 | 54 | 58 |
| 2014 | 70 | 44 |
| 2015 | 56 | 41 |
| 2016 | 48 | 22 |
| 2017 | 42 | 22 |
| 2018 | 21 | 29 |
| 2019 | 31 | 23 |
| 2020 | 26 | 13 |
| 2021 | 14 | 14 |
| 2022 | 15 | 11 |
| 2023 | 11 | 11 |
| 2024 | 12 | 3 |
| 2025 | 5 | 7 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Multi-band coexistence element21 Apr 2026US 12,609,770 B2Frontier Communications Holdings, LLC
- 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 of injection locking for multiple optical source generation26 Feb 2026US 2026/0058750 A1Cable Television Laboratories, Inc.
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