H04B 10/2575
Radio-over-fibre
Official title: Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
H04B10/2575 (Radio-over-fibre) appears on 2,216 US grants and 2,419 published applications in this corpus.
Search patents in H04B- Granted patents
- 2,216
- Published applications
- 2,419
- Assignees
- 721
- Inventors
- 3,534
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 3 |
| 2002 | 18 | 33 |
| 2003 | 10 | 35 |
| 2004 | 19 | 59 |
| 2005 | 19 | 52 |
| 2006 | 38 | 46 |
| 2007 | 30 | 50 |
| 2008 | 27 | 53 |
| 2009 | 33 | 38 |
| 2010 | 43 | 39 |
| 2011 | 32 | 56 |
| 2012 | 45 | 68 |
| 2013 | 60 | 79 |
| 2014 | 83 | 143 |
| 2015 | 120 | 172 |
| 2016 | 162 | 161 |
| 2017 | 194 | 187 |
| 2018 | 194 | 181 |
| 2019 | 208 | 174 |
| 2020 | 164 | 146 |
| 2021 | 125 | 137 |
| 2022 | 131 | 148 |
| 2023 | 137 | 128 |
| 2024 | 124 | 103 |
| 2025 | 91 | 91 |
| 2026 | 47 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transforming a multipoint-to-point HFC cable network to a point-to-point HFC network6 Oct 2026US 12,756,468 B2Charter Communications Operating, LLC
- Methods and apparatuses providing optical beamforming crossbar arrays for radio communications6 Oct 2026US 12,756,482 B2Huawei Technologies Co., Ltd.
- Systems and methods for low data rate, low power bi-directional transmissions over existing physical communication media29 Sep 2026US 12,750,086 B2Applied Optoelectronics, Inc.
- Optical repeater device and relay method8 Sep 2026US 12,732,275 B2Kabushiki Kaisha Toshiba
- Clock frequency determining method and apparatus8 Sep 2026US 12,732,339 B2Huawei Technologies Co., Ltd.
- System and method for low noise distribution of terahertz waves using optical fiber and noise cancellation1 Oct 2026US 2026/0303213 A1Imra America, Inc.
- Man-portable passive detection and tracking system1 Oct 2026US 2026/0303413 A1Raytheon Company
- Distributed retrodirective array of mobile tethered elements17 Sep 2026US 2026/0280712 A1Raytheon Company
- Artificially manipulating delay in radio access networks and distributed antenna systems20 Aug 2026US 2026/0247312 A1Outdoor Wireless Networks LLC
- Communication system, control method and central station30 Jul 2026US 2026/0222067 A1NTT, Inc.
Most cited
By later US patents
- Backhaul link for distributed antenna system604US 9,113,347 B2AT&T Intellectual Property I, L. P. · 2015
- Radio communication system572US 7,043,271 B1Kabushiki Kaisha Toshiba · 2006
- Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith470US 9,876,570 B2AT&T Intellectual Property I, L. P. · 2018
- Apparatus for providing communication services and methods thereof469US 9,520,945 B2AT&T Intellectual Property I, L. P. · 2016
- Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith468US 9,627,768 B2AT&T Intellectual Property I, L. P. · 2017