H01P 5/12
Coupling devices having more than two ports
Official title: Coupling devices having more than two ports (H01P5/04 takes precedence)
H01P5/12 (Coupling devices having more than two ports) appears on 2,687 US grants and 2,378 published applications in this corpus.
Search patents in H01P- Granted patents
- 2,687
- Published applications
- 2,378
- Assignees
- 988
- Inventors
- 4,450
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 17 | 0 |
| 1978 | 21 | 0 |
| 1979 | 9 | 0 |
| 1980 | 15 | 0 |
| 1981 | 15 | 0 |
| 1982 | 15 | 0 |
| 1983 | 17 | 0 |
| 1984 | 17 | 0 |
| 1985 | 17 | 0 |
| 1986 | 21 | 0 |
| 1987 | 34 | 0 |
| 1988 | 16 | 0 |
| 1989 | 25 | 0 |
| 1990 | 26 | 0 |
| 1991 | 21 | 0 |
| 1992 | 24 | 0 |
| 1993 | 20 | 0 |
| 1994 | 20 | 0 |
| 1995 | 22 | 0 |
| 1996 | 18 | 0 |
| 1997 | 16 | 0 |
| 1998 | 21 | 0 |
| 1999 | 26 | 0 |
| 2000 | 23 | 0 |
| 2001 | 24 | 11 |
| 2002 | 29 | 36 |
| 2003 | 43 | 47 |
| 2004 | 47 | 62 |
| 2005 | 35 | 43 |
| 2006 | 47 | 44 |
| 2007 | 37 | 44 |
| 2008 | 37 | 41 |
| 2009 | 36 | 56 |
| 2010 | 40 | 66 |
| 2011 | 46 | 69 |
| 2012 | 50 | 74 |
| 2013 | 69 | 76 |
| 2014 | 69 | 109 |
| 2015 | 101 | 100 |
| 2016 | 145 | 140 |
| 2017 | 136 | 169 |
| 2018 | 163 | 157 |
| 2019 | 173 | 185 |
| 2020 | 197 | 156 |
| 2021 | 128 | 138 |
| 2022 | 119 | 145 |
| 2023 | 91 | 115 |
| 2024 | 128 | 120 |
| 2025 | 129 | 96 |
| 2026 | 74 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Iris waveguide switch22 Sep 2026US 12,744,297 B2
- Dual-mode waveguide power divider22 Sep 2026US 12,744,298 B2Huawei Technologies Co., Ltd.
- Millimeter-wave crossover coupler22 Sep 2026US 12,744,299 B2Dell Products L. P.
- Radio frequency module22 Sep 2026US 12,744,554 B2Murata Manufacturing Co., Ltd.
- RF power splitting and control15 Sep 2026US 12,738,455 B2APPLIED Materials.Inc.
- Impedance transforming tapered couplers8 Oct 2026US 2026/0312271 A1Qorvo US, Inc.
- Coupler, butler matrix circuit, transmitting circuit, and transmitting device1 Oct 2026US 2026/0302585 A1Sumitomo Electric Industries, Ltd.
- Power amplification and coupling circuit with transformer line24 Sep 2026US 2026/0291441 A1Jabil Inc.
- Phase shifter using dielectric and electronic device including the same17 Sep 2026US 2026/0280089 A1Samsung Electronics Co., Ltd.
- Directional coupler17 Sep 2026US 2026/0280092 A1Pabrain Co., Ltd
Most cited
By later US patents
- Technique for conveying a wireless-standard signal through a barrier665US 8,344,829 B2AT&T Intellectual Property I, L. P. · 2013
- Surface wave coupler661US 8,212,635 B2AT&T Intellectual Property I, L. P. · 2012
- Electromagnetic transmission line elements having a boundary between materials of high and low dielectric constants634US 5,889,449 ASpace Systems/Loral, Inc. · 1999
- Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves478US 9,768,833 B2AT&T Intellectual Property I, L. P. · 2017
- Guided-wave transmission device with diversity and methods for use therewith471US 9,564,947 B2AT&T Intellectual Property I, L. P. · 2017