H04J 14/0252
Sharing one wavelength for at least a group of onus
Official title: {Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU}
H04J14/0252 (Sharing one wavelength for at least a group of onus) appears on 418 US grants and 449 published applications in this corpus.
Search patents in H04J- Granted patents
- 418
- Published applications
- 449
- Assignees
- 168
- Inventors
- 802
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 14 |
| 2003 | 6 | 27 |
| 2004 | 4 | 24 |
| 2005 | 9 | 28 |
| 2006 | 16 | 35 |
| 2007 | 19 | 45 |
| 2008 | 29 | 37 |
| 2009 | 24 | 50 |
| 2010 | 29 | 29 |
| 2011 | 32 | 22 |
| 2012 | 27 | 30 |
| 2013 | 29 | 23 |
| 2014 | 32 | 23 |
| 2015 | 26 | 13 |
| 2016 | 20 | 8 |
| 2017 | 19 | 13 |
| 2018 | 11 | 7 |
| 2019 | 10 | 6 |
| 2020 | 9 | 4 |
| 2021 | 3 | 4 |
| 2022 | 5 | 3 |
| 2023 | 4 | 3 |
| 2024 | 4 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for delivery of multiple passive optical network services10 Feb 2026US RE50,793 E1CommScope Technologies LLC
- System and methods for time and frequency division passive optical network1 Oct 2024US 12,107,668 B1Cable Television Laboratories, Inc.
- Hybrid fiber coaxial node17 Sep 2024US 12,096,165 B2Comcast Cable Communications, LLC
- Optical line terminal and an optical network unit23 Jan 2024US 11,881,891 B2Nokia Solutions and Networks Oy
- Optical communication system and dispersion compensation method23 Jan 2024US 11,881,893 B2Nippon Telegraph and Telephone Corporation
- Hybrid Fiber Coaxial Node27 Mar 2025US 2025/0106538 A1Comcast Cable Communications, LLC
- System and method for performing in-service optical network certification27 Apr 2023US 2023/0127870 A1
- Hybrid Fiber Coaxial Node16 Mar 2023US 2023/0083085 A1Comcast Cable Communications, LLC
- Optical communication system and dispersion compensation method9 Mar 2023US 2023/0074152 A1Nippon Telegraph and Telephone Corporation
- Optical line terminal and an optical network unit12 May 2022US 2022/0149933 A1Nokia Solutions and Networks Oy
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