H01F 1/065
Obtained by a reduction
Official title: {obtained by a reduction}
H01F1/065 (Obtained by a reduction) appears on 135 US grants and 84 published applications in this corpus.
Search patents in H01F- Granted patents
- 135
- Published applications
- 84
- Assignees
- 67
- Inventors
- 283
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 7 |
| 2006 | 1 | 5 |
| 2007 | 2 | 9 |
| 2008 | 4 | 1 |
| 2009 | 3 | 5 |
| 2010 | 3 | 3 |
| 2011 | 1 | 10 |
| 2012 | 3 | 1 |
| 2013 | 5 | 5 |
| 2014 | 1 | 5 |
| 2015 | 2 | 4 |
| 2016 | 3 | 3 |
| 2017 | 2 | 1 |
| 2018 | 4 | 4 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 4 | 3 |
| 2022 | 2 | 6 |
| 2023 | 4 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 1 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anisotropic iron nitride permanent magnets6 Oct 2026US 12,755,878 B2Niron Magnetics, Inc.
- Iron nitride compositions12 May 2026US 12,624,428 B2Regents of the University of Minnesota
- Iron nitride magnetic material including coated nanoparticles5 May 2026US 12,620,511 B2Regents of the University of Minnesota
- Production of Fe16N2 compound as a permanent magnet13 Jan 2026US 12,525,393 B2Bahcesehir Universitesi
- Iron-based nanoparticles and grains30 Dec 2025US 12,512,238 B2Regents of the University of Minnesota
- Iron nitride magnetic material including coated nanoparticles6 Aug 2026US 2026/0229392 A1Regents of the University of Minnesota
- Rare earth metal recovery1 May 2025US 2025/0137158 A1Deakin University
- Iron nitride compositions7 Mar 2024US 2024/0076764 A1Regents of the University of Minnesota
- Iron-based nanoparticles and grains15 Feb 2024US 2024/0055165 A1Regents of the University of Minnesota
- Anisotropic iron nitride permanent magnets8 Feb 2024US 2024/0047102 A1Niron Magnetics, Inc.
Most cited
By later US patents
- Magnetic particle and method of preparing the same, and magnetic recording medium108US 8,524,108 B2FUJIFILM Corporation · 2013
- Process for producing acicular magnetic metallic particle powder39US 4,133,677 AToda Kogyo Corporation · 1979
- Core-shell magnetic nanoparticles and nanocomposite materials formed therefrom35US 7,029,514 B1University of Rochester · 2006
- Synthesis of metal nanoparticle compositions from metallic and ethynyl compounds32US 6,846,345 B1The United States of America as represented by the Secretary of the Navy · 2005
- Method of producing magnetic material with alkaline borohydrides27US 4,096,316 AFuji Photo Film Co., Ltd. · 1978