H03H 11/32
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
H03H11/32 (Networks for transforming balanced signals into unbalanced signals and vice versa) appears on 126 US grants and 119 published applications in this corpus.
Search patents in H03H- Granted patents
- 126
- Published applications
- 119
- Assignees
- 108
- Inventors
- 279
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 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 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 6 |
| 2004 | 4 | 5 |
| 2005 | 8 | 6 |
| 2006 | 6 | 3 |
| 2007 | 2 | 2 |
| 2008 | 0 | 6 |
| 2009 | 5 | 8 |
| 2010 | 8 | 4 |
| 2011 | 3 | 5 |
| 2012 | 3 | 4 |
| 2013 | 5 | 3 |
| 2014 | 4 | 1 |
| 2015 | 4 | 8 |
| 2016 | 7 | 2 |
| 2017 | 7 | 9 |
| 2018 | 2 | 8 |
| 2019 | 11 | 8 |
| 2020 | 8 | 5 |
| 2021 | 7 | 4 |
| 2022 | 1 | 6 |
| 2023 | 4 | 2 |
| 2024 | 4 | 7 |
| 2025 | 5 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transformer-based balanced-impedance phase shifters for beamforming15 Sep 2026US 12,738,646 B1Oso Semiconductor Inc.
- Biological information monitoring apparatus and MRI apparatus10 Feb 2026US 12,543,965 B2Canon Medical Systems Corporation
- Multi-layer balanced-to-unbalanced (balun) transmission line transformer with harmonic rejection15 Jul 2025US 12,362,087 B2Intel Corporation
- Common-mode filtering for converting differential signaling to single-ended signaling27 May 2025US 12,317,414 B1Marvell Asia Pte Ltd
- Active balun design11 Mar 2025US 12,249,960 B2Analog Devices, Inc.
- Bidirectional variable gain phase shifter based on asymmetric power distribution2 Jul 2026US 2026/0189214 A1UIF (University Industry Foundation), Yonsei University
- Active unbalanced-to-balanced converter circuit22 Jan 2026US 2026/0025125 A1Skyworks Solutions, Inc.
- Dual band reconfigurable balun circuit23 Oct 2025US 2025/0330152 A1Qorvo US, Inc.
- Differential to single ended balun technique9 Oct 2025US 2025/0317126 A1Skyworks Solutions, Inc.
- Multiband balun4 Sep 2025US 2025/0279759 A1NEC Corporation
Most cited
By later US patents
- Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same78US 6,900,705 B2Matsushita Electric Industrial Co., Ltd. · 2005
- Passive balun FET mixer64US 6,871,059 B1Skyworks Solutions, Inc. · 2005
- Single-ended-to-differential converter with common-mode voltage control61US 6,873,210 B2Broadcom Corporation · 2005
- Planar broadband FET balun44US 5,039,891 AHughes Aircraft Company · 1991
- Unbalanced-balanced multiband filter module30US 7,242,268 B2Hitachi Metals, Ltd. · 2007