H03H 7/19
Two-port phase shifters providing a predetermined phase shift
Official title: Two-port phase shifters providing a predetermined phase shift, e.g. "all-pass" filters
H03H7/19 (Two-port phase shifters providing a predetermined phase shift) appears on 63 US grants and 60 published applications in this corpus.
Search patents in H03H- Granted patents
- 63
- Published applications
- 60
- Assignees
- 53
- Inventors
- 137
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 3 | 5 |
| 2005 | 4 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 3 |
| 2015 | 2 | 4 |
| 2016 | 0 | 0 |
| 2017 | 4 | 4 |
| 2018 | 1 | 6 |
| 2019 | 8 | 4 |
| 2020 | 7 | 11 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 7 | 4 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Low-noise amplifier supporting beam-forming function and receiver including the same20 Jan 2026US 12,531,522 B2Samsung Electronics Co., Ltd.
- Split-type, half-lattice micro-acoustic filter using a phase shifter and having broad bandwidth19 Aug 2025US 12,395,153 B2RF360 Singapore Pte. Ltd.
- Phase shifter comprising selectable first and second all-pass filters, where the all-pass filters include capacitors and inductors of determined values to achieve impedance matching3 Jun 2025US 12,323,123 B2Mitsubishi Electric Corporation
- Full-duplex electrical balanced duplexer4 Mar 2025US 12,244,546 B2Apple Inc.
- Cascaded low-noise wideband active phase shifter7 May 2024US 11,979,129 B2Raytheon Company
- Full-duplex electrical balanced duplexer8 May 2025US 2025/0150249 A1Apple Inc.
- Low-noise amplifier supporting beam-forming function and receiver including the same7 Mar 2024US 2024/0080002 A1Samsung Electronics Co., Ltd.
- Filter combinations for carrier aggregation9 Nov 2023US 2023/0361850 A1Skyworks Solutions, Inc.
- Cascaded low-noise wideband active phase shifter20 Jul 2023US 2023/0231542 A1Raytheon Company
- Phase shifter and phased array antenna device6 Apr 2023US 2023/0106157 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Monolithic microwave phase shifting network41US 4,857,777 AGeneral Electric Company · 1989
- Filter using film bulk acoustic resonator and transmission/reception switch21US 6,885,260 B2Ube Industries, Ltd. · 2005
- Electronic holding circuit and adjusting method thereof using a probabilistic searching technique17US 6,637,008 B1Agency of Industrial Science and Technology · 2003
- Passive temperature compensating LC filter16US 5,920,241 AEMC Technology, Inc. · 1999
- Duplexer with negative phase shifting circuit16US 8,193,877 B2Avago Technologies Wireless IP (Singapore) Pte. Ltd. · 2012