F04D 19/048
Comprising magnetic bearings
Official title: {comprising magnetic bearings}
F04D19/048 (Comprising magnetic bearings) appears on 138 US grants and 123 published applications in this corpus.
Search patents in F04D- Granted patents
- 138
- Published applications
- 123
- Assignees
- 64
- Inventors
- 230
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 7 | 5 |
| 2003 | 6 | 6 |
| 2004 | 4 | 1 |
| 2005 | 2 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 6 |
| 2011 | 3 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 3 | 7 |
| 2015 | 0 | 5 |
| 2016 | 1 | 2 |
| 2017 | 6 | 4 |
| 2018 | 1 | 11 |
| 2019 | 5 | 7 |
| 2020 | 8 | 8 |
| 2021 | 10 | 6 |
| 2022 | 6 | 11 |
| 2023 | 6 | 10 |
| 2024 | 11 | 10 |
| 2025 | 8 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Turbo vacuum pump with a magnetically levitated rotor and a control unit for displacing the rotator at various angles to scrape deposits from the inside of the pump98US 5,961,291 AHitachi, Ltd. · 1999
- Vacuum pump for producing a clean molecular vacuum85US 5,106,273 AAlcatel Cit · 1992
- Bearing arrangement56US 4,082,376 AArthur Pfeiffer Vakuumtechnik Wetzlar GmbH · 1978
- Vacuum pump having a rotor supported in the interior of its casing51US 4,057,369 AMaschinenfabrik Augsburg-Nurnberg Aktiengesellschaft · 1977
- Turbo molecular pump45US 5,152,679 AEbara Corporation · 1992