H04B 10/298
Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines
Official title: {Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines}
H04B10/298 (Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines) appears on 99 US grants and 84 published applications in this corpus.
Search patents in H04B- Granted patents
- 99
- Published applications
- 84
- Assignees
- 51
- Inventors
- 174
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 3 |
| 2002 | 4 | 13 |
| 2003 | 6 | 12 |
| 2004 | 4 | 10 |
| 2005 | 9 | 11 |
| 2006 | 10 | 3 |
| 2007 | 5 | 1 |
| 2008 | 4 | 2 |
| 2009 | 1 | 3 |
| 2010 | 3 | 4 |
| 2011 | 3 | 0 |
| 2012 | 3 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 3 |
| 2020 | 1 | 4 |
| 2021 | 4 | 2 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Quantum repeater for optical network and method11 Nov 2025US 12,470,305 B2Nanofiber Quantum Technologies, Inc.
- Extending DAS range in undersea cables using loopbacks15 Jul 2025US 12,360,005 B2Subcom, LLC
- Extending DAS range in undersea cables using loopbacks16 Jul 2024US 12,038,345 B2Subcom, LLC
- Supervision of an optical path including an amplifier12 Sep 2023US 11,757,528 B2Alcatel Submarine Networks
- Optical repeater, transmission path fiber monitoring method, and optical transmission system18 Oct 2022US 11,476,939 B2NEC Corporation
- Quantum repeater for optical network and method12 Feb 2026US 2026/0046034 A1Nanofiber Quantum Technologies, Inc.
- Fiber optic cable power in repeatered systems12 Jun 2025US 2025/0192889 A1Subcom, LLC
- Quantum repeater for optical network and method9 Jan 2025US 2025/0015901 A1Nanofiber Quantum Technologies, Inc.
- Optical coupling element, arrangement, and transceiver21 Nov 2024US 2024/0388364 A1Innolume GmbH
- Extending das range in undersea cables using loopbacks3 Oct 2024US 2024/0328895 A1Subcom, LLC
Most cited
By later US patents
- Pump laser control circuit for an optical transmission system97US 5,343,320 AAT&T Bell Laboratories · 1994
- Broadband Raman pre-amplifier for wavelength division multiplexed optical communication systems97US 6,151,160 ATyco Submarine Systems Ltd. · 2000
- Highly scalable modular optical amplifier based subsystem82US 6,236,499 B1Nortel Networks Limited · 2001
- Optical amplifier and optical communication system provided with the optical amplifier73US 5,299,048 AFujitsu Limited · 1994
- Optical network for transmitting two-way multicast signals51US 6,295,148 B1Antec Corporation · 2001