F16C 32/044
Active magnetic bearings
Official title: {Active magnetic bearings}
F16C32/044 (Active magnetic bearings) appears on 1,405 US grants and 1,026 published applications in this corpus.
Search patents in F16C- Granted patents
- 1,405
- Published applications
- 1,026
- Assignees
- 563
- Inventors
- 2,089
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 12 | 0 |
| 1982 | 15 | 0 |
| 1983 | 11 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 17 | 0 |
| 1987 | 19 | 0 |
| 1988 | 11 | 0 |
| 1989 | 21 | 0 |
| 1990 | 14 | 0 |
| 1991 | 26 | 0 |
| 1992 | 33 | 0 |
| 1993 | 32 | 0 |
| 1994 | 26 | 0 |
| 1995 | 20 | 0 |
| 1996 | 29 | 0 |
| 1997 | 24 | 0 |
| 1998 | 46 | 0 |
| 1999 | 39 | 0 |
| 2000 | 39 | 0 |
| 2001 | 46 | 15 |
| 2002 | 45 | 45 |
| 2003 | 53 | 31 |
| 2004 | 41 | 30 |
| 2005 | 23 | 29 |
| 2006 | 22 | 19 |
| 2007 | 21 | 33 |
| 2008 | 18 | 44 |
| 2009 | 15 | 34 |
| 2010 | 30 | 39 |
| 2011 | 24 | 40 |
| 2012 | 29 | 26 |
| 2013 | 19 | 29 |
| 2014 | 31 | 64 |
| 2015 | 33 | 54 |
| 2016 | 29 | 37 |
| 2017 | 51 | 42 |
| 2018 | 37 | 47 |
| 2019 | 48 | 66 |
| 2020 | 56 | 50 |
| 2021 | 45 | 46 |
| 2022 | 55 | 42 |
| 2023 | 35 | 47 |
| 2024 | 42 | 53 |
| 2025 | 41 | 47 |
| 2026 | 24 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16C 32/0474For rotary movement694
- F16C 32/0444Details of devices to control the actuation of the electromagnets619
- F16C 32/0459Details of the magnetic circuit339
- F16C 32/0442With devices affected by abnormal, undesired or non-standard conditions such as shock-load264
- F16C 32/047Details of housings154
- F16C 32/0472For linear movement70
Recent patents
- Magnetic bearing and compressor22 Sep 2026US 12,742,475 B2Gree Electric Appliances, Inc. of Zhuhai
- Method of regulating electrical supply for a magnetic bearing control system15 Sep 2026US 12,736,083 B2Atlas Copco Airpower N.V.
- Battery-based active magnetic bearing system and a power supply circuit thereof25 Aug 2026US 12,719,301 B2Carrier Corporation
- Back-yokeless magnetic-bearing-integrated motor25 Aug 2026US 12,719,332 B2Gachon University of Industry-Academic Cooperation Foundation
- Abnormal physical condition determination system, abnormal physical condition determination method, and computer program11 Aug 2026US 12,705,907 B2NEC Corporation
- Abnormal physical condition determination system, abnormal physical condition determination method, and computer program8 Oct 2026US 2026/0311499 A1NEC Corporation
- Magnetic levitation device and pump unit10 Sep 2026US 2026/0266292 A1Levitronix LLC
- Magnetic levitation device and pump unit10 Sep 2026US 2026/0266305 A1Levitronix LLC
- Canned Rotodynamic Flow Machine For A Molten Salt Nuclear Reactor And An Active Magnetic Bearing For Use In A Flow Machine For A Molten Salt Nuclear Reactor20 Aug 2026US 2026/0243262 A1Copenhagen Atomics A/S
- Motor bearing wear monitoring device, setting method for motor bearing wear monitoring device, and setting program16 Jul 2026US 2026/0202281 A1Nikkiso Co., Ltd.
Most cited
By later US patents
- Combined position sensor and magnetic motor or bearing1,212US 4,652,820 ANorth American Philips Corporation · 1987
- Magnetically suspended rotor axial flow blood pump373US 4,779,614 ANimbus Medical, Inc. · 1988
- 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
- Active magnetic bearing system for blood pump319US 6,264,635 B1Kriton Medical, Inc. · 2001