H01F 27/348
Preventing eddy currents
Official title: {Preventing eddy currents}
H01F27/348 (Preventing eddy currents) appears on 137 US grants and 201 published applications in this corpus.
Search patents in H01F- Granted patents
- 137
- Published applications
- 201
- Assignees
- 128
- Inventors
- 491
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 4 |
| 2008 | 2 | 6 |
| 2009 | 3 | 4 |
| 2010 | 6 | 8 |
| 2011 | 0 | 4 |
| 2012 | 3 | 2 |
| 2013 | 5 | 4 |
| 2014 | 3 | 13 |
| 2015 | 3 | 9 |
| 2016 | 7 | 13 |
| 2017 | 9 | 6 |
| 2018 | 7 | 21 |
| 2019 | 13 | 11 |
| 2020 | 9 | 13 |
| 2021 | 13 | 13 |
| 2022 | 4 | 11 |
| 2023 | 6 | 23 |
| 2024 | 12 | 18 |
| 2025 | 11 | 7 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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- High Q integrated inductor79US 5,635,892 ALucent Technologies Inc. · 1997
- High frequency matrix transformer73US 4,845,606 AFMTT, Inc. · 1989
- Shielded electrical wire construction, and transformer utilizing the same for reduction of capacitive coupling61US 5,012,125 ANorand Corporation · 1991
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