H04B 7/02
Diversity systems
Official title: Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas (RAKE receivers H04B1/7115)
H04B7/02 (Diversity systems) appears on 42,568 US grants and 52,711 published applications in this corpus.
Search patents in H04B- Granted patents
- 42,568
- Published applications
- 52,711
- Assignees
- 3,594
- Inventors
- 31,229
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 17 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 13 | 0 |
| 1984 | 6 | 0 |
| 1985 | 16 | 0 |
| 1986 | 16 | 0 |
| 1987 | 14 | 0 |
| 1988 | 17 | 0 |
| 1989 | 21 | 0 |
| 1990 | 16 | 0 |
| 1991 | 7 | 0 |
| 1992 | 21 | 0 |
| 1993 | 36 | 0 |
| 1994 | 47 | 0 |
| 1995 | 47 | 0 |
| 1996 | 82 | 0 |
| 1997 | 88 | 0 |
| 1998 | 132 | 0 |
| 1999 | 137 | 0 |
| 2000 | 185 | 0 |
| 2001 | 178 | 82 |
| 2002 | 221 | 353 |
| 2003 | 206 | 432 |
| 2004 | 260 | 564 |
| 2005 | 270 | 662 |
| 2006 | 468 | 788 |
| 2007 | 405 | 829 |
| 2008 | 475 | 920 |
| 2009 | 542 | 1002 |
| 2010 | 643 | 1209 |
| 2011 | 882 | 1307 |
| 2012 | 1161 | 1559 |
| 2013 | 1458 | 1824 |
| 2014 | 1875 | 1868 |
| 2015 | 2041 | 2178 |
| 2016 | 2059 | 2269 |
| 2017 | 2123 | 2314 |
| 2018 | 2317 | 2747 |
| 2019 | 2926 | 3340 |
| 2020 | 3130 | 3820 |
| 2021 | 3064 | 3649 |
| 2022 | 3102 | 3839 |
| 2023 | 3114 | 4030 |
| 2024 | 3301 | 4238 |
| 2025 | 3166 | 3753 |
| 2026 | 2207 | 3135 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Clustered coherent distributed spatial multiplexing in wireless communication networks6 Oct 2026US 12,756,424 B2TrellisWare Technologies, Inc.
- Transmission method and apparatus, device, and readable storage medium6 Oct 2026US 12,756,425 B2Datang Mobile Communications Equipment Co., Ltd.
- Wireless secure communication method using reconfigurable intelligent surface-non-orthogonal multiple access under complex channel conditions6 Oct 2026US 12,756,426 B2Taiyuan University of Science and Technology
- Reconfigurable intelligent surface (RIS) reservation for sidelink communications6 Oct 2026US 12,756,427 B2QUALCOMM Incorporated
- Methods and systems for sensing-based channel reconstruction and tracking6 Oct 2026US 12,756,428 B2Huawei Technologies Co., Ltd.
- Processing unit occupancy rules and prioritization rules for artificial intelligence enabled use cases8 Oct 2026US 2026/0310516 A1Apple Inc.
- Apparatus and method for position estimation based on distance-based channel charting with velocity and map information8 Oct 2026US 2026/0310961 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Methods, architectures, apparatuses and systems for coordinated beamforming in wi-fi8 Oct 2026US 2026/0312627 A1
- Method for performing joint transmission in wireless communication system and apparatus therefor8 Oct 2026US 2026/0312628 A1LG Electronics Inc.
- Beamforming method and device in ris element grouping8 Oct 2026US 2026/0312629 A1Knu-Industry Cooperation Foundation
Most cited
By later US patents
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Low cost anvil assembly for a circular stapler760US 8,910,847 B2Ethicon Endo-Surgery, Inc. · 2014
- Millimeter-wave surface-wave communications708US 8,897,697 B1AT&T Intellectual Property I, L. P. · 2014
- CDMA microcellular telephone system and distributed antenna system therefor661US 5,280,472 AQUALCOMM Incorporated · 1994
- Spatio-temporal processing for communication580US 6,144,711 ACisco Systems, Inc. · 2000