H01F 1/34
Non-metallic substances
Official title: non-metallic substances, e.g. ferrites
H01F1/34 (Non-metallic substances) appears on 942 US grants and 1,132 published applications in this corpus.
Search patents in H01F- Granted patents
- 942
- Published applications
- 1,132
- Assignees
- 490
- Inventors
- 2,351
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 17 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 8 |
| 2002 | 21 | 30 |
| 2003 | 29 | 42 |
| 2004 | 31 | 34 |
| 2005 | 18 | 20 |
| 2006 | 17 | 21 |
| 2007 | 19 | 28 |
| 2008 | 11 | 27 |
| 2009 | 14 | 36 |
| 2010 | 18 | 38 |
| 2011 | 28 | 40 |
| 2012 | 15 | 32 |
| 2013 | 35 | 27 |
| 2014 | 19 | 29 |
| 2015 | 12 | 42 |
| 2016 | 23 | 44 |
| 2017 | 41 | 43 |
| 2018 | 29 | 59 |
| 2019 | 41 | 73 |
| 2020 | 35 | 63 |
| 2021 | 52 | 80 |
| 2022 | 51 | 89 |
| 2023 | 69 | 88 |
| 2024 | 58 | 58 |
| 2025 | 57 | 51 |
| 2026 | 46 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for a remote control actuator6 Oct 2026US 12,753,743 B2Trustees of Tufts College
- Magnetic resin composition, cured product, and electronic component6 Oct 2026US 12,755,880 B2FUJIFILM Corporation
- M-type hexaferrite comprising a low dielectric loss ceramic29 Sep 2026US 12,749,604 B2Rogers Corporation
- Accurate and comprehensive cardiac troponin I assay enabled by nanotechnology and proteomics22 Sep 2026US 12,744,137 B2Wisconsin Alumni Research Foundation
- Multifferoic R-type hexaferrite, a composite and an article comprising the R-type hexaferrite, and a method of making the same22 Sep 2026US 12,744,140 B2Rogers Corporation
- Self-assembled soft magnetic ferrite nanocomposite materials and passive components and methods of making same1 Oct 2026US 2026/0296983 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Soft magnetic powder, magnetic body, and coil device1 Oct 2026US 2026/0302019 A1TDK Corporation
- Ferrite sintered body and electronic device using thereof1 Oct 2026US 2026/0302020 A1TDK Corporation
- Soft magnetic powder, magnetic and coil device24 Sep 2026US 2026/0290666 A1TDK Corporation
- Method and apparatus for inhibiting the growth of proliferating cells or viruses17 Sep 2026US 2026/0273298 A1Alternating Current Treatment Therapy Medical Inc.
Most cited
By later US patents
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Non-spherical nanopowder derived nanocomposites126US 6,916,872 B2NanoProducts Corporation · 2005
- Noise suppressor116US 5,500,629 A1996
- Nanotechnology for drug delivery, contrast agents and biomedical implants110US 6,933,331 B2NanoProducts Corporation · 2005