H01F 1/0551
In the form of particles
Official title: {in the form of particles, e.g. rapid quenched powders or ribbon flakes}
H01F1/0551 (In the form of particles) appears on 128 US grants and 139 published applications in this corpus.
Search patents in H01F- Granted patents
- 128
- Published applications
- 139
- Assignees
- 91
- Inventors
- 354
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 7 |
| 2003 | 6 | 7 |
| 2004 | 3 | 5 |
| 2005 | 6 | 3 |
| 2006 | 1 | 3 |
| 2007 | 5 | 4 |
| 2008 | 1 | 1 |
| 2009 | 3 | 4 |
| 2010 | 2 | 2 |
| 2011 | 0 | 6 |
| 2012 | 2 | 6 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 3 | 10 |
| 2016 | 7 | 8 |
| 2017 | 1 | 7 |
| 2018 | 4 | 5 |
| 2019 | 6 | 8 |
| 2020 | 6 | 9 |
| 2021 | 6 | 6 |
| 2022 | 5 | 10 |
| 2023 | 5 | 11 |
| 2024 | 8 | 10 |
| 2025 | 4 | 3 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermally stable, cladded permanent magnets, and compositions and methods for making the same11 Aug 2026US 12,706,235 B2HRL Laboratories, LLC
- Rare earth magnet and method for producing thereof12 May 2026US 12,626,843 B2Toyota Jidosha Kabushiki Kaisha
- Samarium cobalt and neodymium iron boride magnets and methods of manufacturing same28 Apr 2026US 12,614,663 B2Lawrence Livermore National Security, LLC
- Bonded magnet and method of preparing the same21 Apr 2026US 12,609,223 B2Nichia Corporation
- Magnetic polishing slurry and method for polishing a workpiece10 Feb 2026US 12,545,810 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Radically polymerizable resin composition30 Apr 2026US 2026/0117005 A1Aisin Corporation
- Feedstock and heterogeneous structures for tough rare earth permanent magnets and production process therefor20 Mar 2025US 2025/0095914 A1
- Bonded magnet and method of preparing the same30 Jan 2025US 2025/0037910 A1Nichia Corporation
- Method of producing magnetic powder, magnetic material for magnetic field amplification, and magnetic material for hyper-high frequency absorption9 Jan 2025US 2025/0014791 A1Nichia Corporation
- Rare-earth magnet material and magnet8 Aug 2024US 2024/0266095 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Method of making environmentally stable reactive alloy powders127US 5,372,629 AIowa State University Research Foundation, Inc. · 1994
- Environmentally stable reactive alloy powders and method of making same91US 5,811,187 AIowa State University Research Foundation, Inc. · 1998
- Method of making magnets by polymer-coating magnetic powder58US 3,933,536 AGeneral Electric Company · 1976
- Moldable microcapsule that contains a high percentage of solid core material, and method of manufacture thereof43US 5,069,972 A1991
- Passivated rare earth magnet or magnetic material compositions30US 4,988,755 AThe B. F. Goodrich Company · 1991