H04B 7/145
Passive relay systems
H04B7/145 (Passive relay systems) appears on 165 US grants and 245 published applications in this corpus.
Search patents in H04B- Granted patents
- 165
- Published applications
- 245
- Assignees
- 112
- Inventors
- 499
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 6 |
| 2016 | 3 | 7 |
| 2017 | 7 | 12 |
| 2018 | 13 | 11 |
| 2019 | 5 | 9 |
| 2020 | 11 | 13 |
| 2021 | 9 | 14 |
| 2022 | 15 | 18 |
| 2023 | 13 | 38 |
| 2024 | 20 | 50 |
| 2025 | 38 | 28 |
| 2026 | 15 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method, apparatus and computer program22 Sep 2026US 12,744,581 B2Nokia Technologies Oy
- Reflective devices for conveying radio-frequency signals15 Sep 2026US 12,739,019 B2Apple Inc.
- Positioning method and apparatus15 Sep 2026US 12,739,783 B2Huawei Technologies Co., Ltd.
- Seed for forwarding device configuration1 Sep 2026US 12,726,237 B2QUALCOMM Incorporated
- Communication method using beam steering apparatus comprising meta-surface1 Sep 2026US 12,726,238 B2Korea Advanced Institute of Science and Technology
- Communication method and communications device20 Aug 2026US 2026/0246499 A1Quectel Wireless Solutions Co., Ltd.
- Method and device for multi-group multicasting in wireless communication system30 Jul 2026US 2026/0222016 A1LG Electronics Inc.
- Method and apparatus for determining ris association in a wireless communication system30 Jul 2026US 2026/0222017 A1Samsung Electronics Co., Ltd.
- Station positioning system, station positioning device, station positioning method, and station positioning program23 Jul 2026US 2026/0214619 A1NTT, Inc.
- Station positioning system, station positioning device, station positioning method, and station positioning program23 Jul 2026US 2026/0214632 A1NTT, Inc.
Most cited
By later US patents
- Method and apparatus for proximity sensing449US 9,998,870 B1AT&T Intellectual Property I, L. P. · 2018
- Successive signal interference mitigation52US 9,806,914 B1Uhnder, Inc. · 2017
- Modulated retroreflection system for secure communication and identification49US 5,819,164 AThe United States of America as represented by the Secretary of the Army · 1998
- Passive RF path diverter32US 4,403,222 AMotorola, Inc. · 1983
- Automation devices, systems, architectures, and methods for energy management and other applications24US 9,588,506 B1Autani, LLC · 2017