F04D 13/064
Details of the magnetic circuit
Official title: {Details of the magnetic circuit}
F04D13/064 (Details of the magnetic circuit) appears on 336 US grants and 376 published applications in this corpus.
Search patents in F04D- Granted patents
- 336
- Published applications
- 376
- Assignees
- 223
- Inventors
- 783
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 4 |
| 2002 | 9 | 4 |
| 2003 | 12 | 10 |
| 2004 | 7 | 14 |
| 2005 | 8 | 10 |
| 2006 | 5 | 13 |
| 2007 | 4 | 14 |
| 2008 | 2 | 7 |
| 2009 | 4 | 12 |
| 2010 | 5 | 12 |
| 2011 | 6 | 13 |
| 2012 | 7 | 12 |
| 2013 | 12 | 28 |
| 2014 | 11 | 21 |
| 2015 | 12 | 13 |
| 2016 | 10 | 17 |
| 2017 | 15 | 19 |
| 2018 | 14 | 11 |
| 2019 | 32 | 21 |
| 2020 | 19 | 13 |
| 2021 | 15 | 18 |
| 2022 | 7 | 18 |
| 2023 | 11 | 17 |
| 2024 | 19 | 16 |
| 2025 | 19 | 17 |
| 2026 | 14 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Bearingless blood pump and electronic drive system372US 6,071,093 AABIOMED, Inc. · 2000
- Rotary pump with hydrodynamically suspended impeller327US 6,227,797 B1VentrAssist Pty Ltd and University of Technology · 2001
- Magnetically suspended and rotated impellor pump apparatus and method291US 4,688,998 A1987
- Continuous flow rotary pump251US 6,247,892 B1IMPSA International Inc. · 2001
- Blood pump having a magnetically suspended rotor250US 6,447,266 B2The United States of America as represented by the United States National Aeronautics and Space Administration · 2002