H01P 5/227
90° branch line couplers
Official title: {90° branch line couplers}
H01P5/227 (90° branch line couplers) appears on 86 US grants and 96 published applications in this corpus.
Search patents in H01P- Granted patents
- 86
- Published applications
- 96
- Assignees
- 84
- Inventors
- 209
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 4 |
| 2010 | 2 | 2 |
| 2011 | 3 | 4 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 5 |
| 2016 | 3 | 1 |
| 2017 | 1 | 4 |
| 2018 | 5 | 9 |
| 2019 | 8 | 9 |
| 2020 | 13 | 10 |
| 2021 | 6 | 4 |
| 2022 | 5 | 4 |
| 2023 | 1 | 6 |
| 2024 | 6 | 6 |
| 2025 | 3 | 4 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio frequency module22 Sep 2026US 12,744,554 B2Murata Manufacturing Co., Ltd.
- Branch-line coupler30 Jun 2026US 12,671,162 B2Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Transmission line arrangement for a passive component7 Apr 2026US 12,597,712 B2NXP B. V.
- Hybrid coupler and method for manufacturing hybrid couplers25 Nov 2025US 12,482,916 B2Outdoor Wireless Networks LLC
- Composite filter and communication device12 Aug 2025US 12,388,409 B2KYOCERA Corporation
- Impedance transforming tapered couplers8 Oct 2026US 2026/0312271 A1Qorvo US, Inc.
- Branch-line coupler17 Sep 2026US 2026/0280093 A1Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Wireless Communications Circuitry having a Hybrid Coupler with Increased Coupling10 Sep 2026US 2026/0269448 A1Apple Inc.
- Radio frequency component, antenna system, and base station25 Jun 2026US 2026/0180602 A1Huawei Technologies Co., Ltd.
- Multi-Antenna HADM Boards with Antenna Signal Combiner5 Mar 2026US 2026/0066552 A1Silicon Laboratories Inc.
Most cited
By later US patents
- Structure comprising at least a first element bonded to a carrier having a closed metallic channel waveguide formed therein206US 10,276,909 B2Invensas Bonding Technologies, Inc. · 2019
- Metamaterials for controlling and guiding electromagnetic radiation and applications therefor100US 6,859,114 B22005
- Quadrature hybrid RF combining system56US 6,194,980 B1Rockwell Collins, Inc. · 2001
- High efficiency four port circuit49US 6,753,745 B2Harris Corporation · 2004
- Demultiplexer/multiplexer, antenna device, and fading elimination method41US 10,530,033 B2NEC Corporation · 2020