H01P 1/32
Non-reciprocal transmission devices
Official title: Non-reciprocal transmission devices (H01P1/02 - H01P1/30 take precedence)
H01P1/32 (Non-reciprocal transmission devices) appears on 799 US grants and 684 published applications in this corpus.
Search patents in H01P- Granted patents
- 799
- Published applications
- 684
- Assignees
- 266
- Inventors
- 1,104
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 16 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 16 | 0 |
| 2001 | 9 | 18 |
| 2002 | 20 | 52 |
| 2003 | 44 | 22 |
| 2004 | 31 | 35 |
| 2005 | 35 | 22 |
| 2006 | 16 | 24 |
| 2007 | 16 | 8 |
| 2008 | 13 | 11 |
| 2009 | 11 | 27 |
| 2010 | 23 | 24 |
| 2011 | 13 | 10 |
| 2012 | 21 | 14 |
| 2013 | 19 | 20 |
| 2014 | 13 | 17 |
| 2015 | 21 | 35 |
| 2016 | 25 | 35 |
| 2017 | 36 | 37 |
| 2018 | 34 | 44 |
| 2019 | 29 | 38 |
| 2020 | 39 | 29 |
| 2021 | 26 | 30 |
| 2022 | 22 | 28 |
| 2023 | 28 | 33 |
| 2024 | 29 | 33 |
| 2025 | 30 | 16 |
| 2026 | 18 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Isolator29 Sep 2026US 12,749,787 B2Kabushiki Kaisha Toshiba
- Method and apparatus for performing full duplex radio in wireless communication system29 Sep 2026US 12,750,085 B2Industry-Academic Cooperation Foundation, Yonsei University
- Coupler and electronic device15 Sep 2026US 12,738,625 B2Huawei Technologies Co., Ltd.
- Stacked double junction circulator device and methods for fabrication4 Aug 2026US 12,700,653 B2TTM Technologies, Inc.
- Electrical filter topology21 Jul 2026US 12,689,406 B2Telefonaktiebolaget LM Ericsson (publ)
- Waveguide device, microwave outdoor unit, and long-haul microwave transmission device24 Sep 2026US 2026/0291044 A1
- Power amplification circuit, radio frequency generation device, and communication system17 Sep 2026US 2026/0280498 A1Huawei Technologies Co., Ltd.
- Isolator and method of magnetization for isolator3 Sep 2026US 2026/0261028 A1KYOCERA Corporation
- Phase shifter assembly, cavity phase shifter with phase shifter assembly and base station antenna13 Aug 2026US 2026/0237877 A1Outdoor Wireless Networks LLC
- Remote compensators for mobile devices6 Aug 2026US 2026/0229759 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Transmitting/receiving antenna, isolator, high-frequency oscillator, and high-frequency transmitter-receiver using the same232US 7,602,333 B2KYOCERA Corporation · 2009
- Dielectric waveguide phase shifter227US 4,818,963 ARaytheon Company · 1989
- 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
- Electrosurgical apparatus129US 10,080,609 B2Creo Medical Limited · 2018
- Electrosurgical apparatus for generating radiofrequency energy and microwave energy for delivery into biological tissue124US 10,188,455 B2Creo Medical Limited · 2019