H03H 7/42
Networks for transforming balanced signals into unbalanced signals and vice versa
Official title: Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
H03H7/42 (Networks for transforming balanced signals into unbalanced signals and vice versa) appears on 936 US grants and 919 published applications in this corpus.
Search patents in H03H- Granted patents
- 936
- Published applications
- 919
- Assignees
- 445
- Inventors
- 1,770
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 17 | 0 |
| 2001 | 6 | 1 |
| 2002 | 11 | 15 |
| 2003 | 15 | 24 |
| 2004 | 17 | 26 |
| 2005 | 21 | 29 |
| 2006 | 24 | 23 |
| 2007 | 25 | 28 |
| 2008 | 18 | 26 |
| 2009 | 19 | 30 |
| 2010 | 22 | 46 |
| 2011 | 36 | 39 |
| 2012 | 36 | 24 |
| 2013 | 34 | 40 |
| 2014 | 32 | 46 |
| 2015 | 45 | 53 |
| 2016 | 51 | 43 |
| 2017 | 51 | 63 |
| 2018 | 48 | 46 |
| 2019 | 75 | 51 |
| 2020 | 40 | 37 |
| 2021 | 39 | 44 |
| 2022 | 40 | 42 |
| 2023 | 29 | 35 |
| 2024 | 38 | 40 |
| 2025 | 41 | 34 |
| 2026 | 18 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Communication device8 Sep 2026US 12,731,902 B2Sony Group Corporation
- Apparatuses and methods involving signal transformation for single-ended coupling8 Sep 2026US 12,732,150 B2NXP B. V.
- Balun phase and amplitude imbalance correction4 Aug 2026US 12,700,843 B2Texas Instruments Incorporated
- Mobile wireless receiver4 Aug 2026US 12,700,879 B2Sennheiser electronic GmbH & Co. KG
- Filter device, high-frequency module, and communication device21 Jul 2026US 12,689,346 B2Murata Manufacturing Co., Ltd.
- Vertical balun for differential-to-single ended transition of mm-wave signals1 Oct 2026US 2026/0305361 A1NXP B. V.
- Low Band Dipole with Extended Bandwidth and Improved Mid Band Cloaking17 Sep 2026US 2026/0280124 A1John Mezzalingua Associates, Inc.
- Balanced filter10 Sep 2026US 2026/0269802 A1Murata Manufacturing Co., Ltd.
- Balun and mixer27 Aug 2026US 2026/0254433 A1Nanjing Milewei Corp
- Electronic circuit module30 Jul 2026US 2026/0221954 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- In-line module for attenuating electrical noise with male and female blade terminals315US 5,982,253 ANartron Corporation · 1999
- Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers180US 6,670,866 B2Nokia Corporation · 2003
- Apparatus for matching unbalanced R. F. baseband signals to balanced signals on a twisted two-wire line171US 4,766,402 A3Com Corporation · 1988
- Magnetic resonance imaging interference immune device165US 7,123,013 B2Biophan Technologies, Inc. · 2006
- Magnetic resonance imaging interference immune device154US 6,949,929 B2Biophan Technologies, Inc. · 2005