H04B 7/12
Frequency diversity
H04B7/12 (Frequency diversity) appears on 738 US grants and 730 published applications in this corpus.
Search patents in H04B- Granted patents
- 738
- Published applications
- 730
- Assignees
- 299
- Inventors
- 1,195
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 3 |
| 2002 | 9 | 8 |
| 2003 | 9 | 21 |
| 2004 | 17 | 22 |
| 2005 | 10 | 26 |
| 2006 | 25 | 26 |
| 2007 | 13 | 36 |
| 2008 | 15 | 37 |
| 2009 | 15 | 43 |
| 2010 | 24 | 40 |
| 2011 | 32 | 38 |
| 2012 | 46 | 36 |
| 2013 | 56 | 35 |
| 2014 | 29 | 42 |
| 2015 | 48 | 48 |
| 2016 | 48 | 31 |
| 2017 | 36 | 34 |
| 2018 | 35 | 38 |
| 2019 | 41 | 35 |
| 2020 | 43 | 35 |
| 2021 | 33 | 29 |
| 2022 | 24 | 20 |
| 2023 | 21 | 19 |
| 2024 | 23 | 15 |
| 2025 | 12 | 9 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transmit diversity for sidelink communications in unlicensed spectrum25 Aug 2026US 12,719,626 B2
- Apparatuses and methods for facilitating a use of MU-MIMO in respect of frequency bands, including the FR2 frequency bands19 May 2026US 12,633,971 B2AT&T Intellectual Property I, L. P.
- Enhancements in carrier aggregation for wireless communication systems, devices operating therein and a method for operating a wireless communication system10 Mar 2026US 12,574,082 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Techniques for beamforming24 Feb 2026US 12,562,784 B2Huawei Technologies Co., Ltd.
- Degradation to reference sensitivity28 Oct 2025US 12,457,088 B2LG Electronics Inc.
- Apparatuses and methods for facilitating a use of mu-mimo in respect of frequency bands, including the fr2 frequency bands10 Sep 2026US 2026/0269886 A1AT&T Intellectual Property I, L. P.
- Frequency compensation for communicating over wired infrastructure using radio access technology9 Jul 2026US 2026/0197040 A1QUALCOMM Incorporated
- Frequency-independent phase shifters and multiband beamforming30 Apr 2026US 2026/0121714 A1Nokia Solutions and Networks Oy
- Communication method and apparatus19 Mar 2026US 2026/0082389 A1Huawei Technologies Co., Ltd.
- Techniques for beamforming3 Jul 2025US 2025/0219683 A1Huawei Technologies Co., Ltd.
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
- Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter445US 5,955,992 A1999
- Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information377US 6,785,341 B2QUALCOMM Incorporated · 2004
- Multiple access method and system268US 7,010,048 B1Aqvity, LLC · 2006
- Transmitter diversity technique for wireless communications240US 6,185,258 B2AT&T Wireless Services, Inc. · 2001