H01P 1/397
Using non- reciprocal phase shifters
Official title: using non- reciprocal phase shifters (H01P1/393 takes precedence)
H01P1/397 (Using non- reciprocal phase shifters) appears on 36 US grants and 32 published applications in this corpus.
Search patents in H01P- Granted patents
- 36
- Published applications
- 32
- Assignees
- 24
- Inventors
- 58
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 2 |
| 2018 | 4 | 7 |
| 2019 | 1 | 1 |
| 2020 | 7 | 2 |
| 2021 | 1 | 2 |
| 2022 | 3 | 1 |
| 2023 | 2 | 4 |
| 2024 | 0 | 3 |
| 2025 | 3 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phase shifter assembly, cavity phase shifter with phase shifter assembly and base station antenna28 Apr 2026US 12,614,825 B2Outdoor Wireless Networks LLC
- Microwave circulator10 Mar 2026US 12,573,736 B2The University of Queensland
- Remote compensators for mobile devices24 Feb 2026US 12,562,445 B2Skyworks Solutions, Inc.
- Multipole multiband isolator devices16 Dec 2025US 12,500,324 B2International Business Machines Corporation
- Magnetless cryogenic circulator21 Oct 2025US 12,451,575 B2
- 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.
- Multipole multiband isolator devices2 Jan 2025US 2025/0007141 A1International Business Machines Corporation
- A magnetless cryogenic circulator7 Nov 2024US 2024/0372241 A1
- Microwave circulator12 Sep 2024US 2024/0304972 A1Analog Quantum Circuits Pty Limited
Most cited
By later US patents
- Circuits and methods for performing self-interference cancelation in full-duplex transceivers29US 9,887,862 B2The Trustees of Columbia University in the City of New York · 2018
- Electromagnet for programmable microwave circulator9US 4,682,126 AThe United States of America as represented by the Secretary of the Air Force · 1987
- Non-ferrite non-reciprocal phase shifter and circulator9US 4,801,901 AHittite Microwave Corporation · 1989
- Circuit for driving switched transistor and filter, circulator and correlator including the same8US 10,742,208 B1HRL Laboratories, LLC · 2020
- Non-reciprocal mode converting substrate integrated waveguide6US 10,147,991 B1Huawei Technologies Canada Co., Ltd. · 2018