H01P 1/19
Using a ferromagnetic device
Official title: using a ferromagnetic device
H01P1/19 (Using a ferromagnetic device) appears on 88 US grants and 30 published applications in this corpus.
Search patents in H01P- Granted patents
- 88
- Published applications
- 30
- Assignees
- 43
- Inventors
- 146
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 3 |
| 2017 | 3 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 5 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Spherical dielectric structures for storing electromagnetic energy28 Oct 2025US 12,456,786 B2
- Non-reciprocal microwave window14 Nov 2023US 11,817,612 B2The Board of Trustees of the Leland Stanford Junior University
- Waveguide system and the manufacturability thereof19 Jul 2022US 11,394,096 B1
- Non-reciprocal microwave window22 Feb 2022US 11,258,149 B2The Board of Trustees of the Leland Stanford Junior University
- Mo-doped Co2Z-type ferrite composite material for use ultra-high frequency antennas8 Sep 2020US 10,766,786 B2Rogers Corporation
- Spherical dielectric structures for storing electromagnetic energy11 Apr 2024US 2024/0120628 A1
- Apparatus and method for baseboard system used in drywall construction21 Dec 2023US 2023/0411814 A1
- Frequency tunable rf phase shifter or circulator having a wide-band saw-multiferroic hybrid device19 Oct 2023US 2023/0336144 A1The United States of America as represented by the Secretary of the Air Force
- Non-Reciprocal Microwave Window14 Apr 2022US 2022/0115758 A1The Board of Trustees of the Leland Stanford Junior University
- Non-Reciprocal Microwave Window3 Jun 2021US 2021/0167475 A1The Board of Trustees of the Leland Stanford Junior University
Most cited
By later US patents
- Ferrite phase shifter and phase array radar system217US 7,417,587 B2Raytheon Company · 2008
- Microstrip phase scan antenna array171US 4,839,659 AThe United States of America as represented by the Secretary of the Army · 1989
- Method and structure for phased array antenna interconnect using an array of substrate slats50US 6,950,062 B1Rockwell Collins, Inc. · 2005
- Planar ferrite phase shifter42US 5,223,808 AHughes Aircraft Company · 1993
- Phased array element with polarization control33US 4,434,426 AThe United States of America as represented by the Secretary of the Army · 1984